diff --git a/doc/src/pair_peri.txt b/doc/src/pair_peri.txt
index 6ffd8122a..7abe6378d 100644
--- a/doc/src/pair_peri.txt
+++ b/doc/src/pair_peri.txt
@@ -1,216 +1,216 @@
 "LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
 
 :link(lws,http://lammps.sandia.gov)
 :link(ld,Manual.html)
 :link(lc,Section_commands.html#comm)
 
 :line
 
 pair_style peri/pmb command :h3
 pair_style peri/pmb/omp command :h3
 pair_style peri/lps command :h3
 pair_style peri/lps/omp command :h3
 pair_style peri/ves command :h3
 pair_style peri/eps command :h3
 
 [Syntax:]
 
 pair_style style :pre
 
 style = {peri/pmb} or {peri/lps} or {peri/ves} or {peri/eps} :ul
 
 [Examples:]
 
 pair_style peri/pmb
 pair_coeff * * 1.6863e22 0.0015001 0.0005 0.25 :pre
 
 pair_style peri/lps
 pair_coeff * * 14.9e9 14.9e9 0.0015001 0.0005 0.25 :pre
 
 pair_style peri/ves
 pair_coeff * * 14.9e9 14.9e9 0.0015001 0.0005 0.25 0.5 0.001 :pre
 
 pair_style peri/eps
 pair_coeff * * 14.9e9 14.9e9 0.0015001 0.0005 0.25 118.43 :pre
 
 [Description:]
 
 The peridynamic pair styles implement material models that can be used
 at the mescscopic and macroscopic scales.  See "this
 document"_PDF/PDLammps_overview.pdf for an overview of LAMMPS commands
 for Peridynamics modeling.
 
 Style {peri/pmb} implements the Peridynamic bond-based prototype
 microelastic brittle (PMB) model.
 
 Style {peri/lps} implements the Peridynamic state-based linear
 peridynamic solid (LPS) model.
 
 Style {peri/ves} implements the Peridynamic state-based linear
 peridynamic viscoelastic solid (VES) model.
 
 Style {peri/eps} implements the Peridynamic state-based elastic-plastic
 solid (EPS) model.
 
 The canonical papers on Peridynamics are "(Silling 2000)"_#Silling2000
 and "(Silling 2007)"_#Silling2007.  The implementation of Peridynamics
 in LAMMPS is described in "(Parks)"_#Parks.  Also see the "PDLAMMPS
 user guide"_http://www.sandia.gov/~mlparks/papers/PDLAMMPS.pdf for
 more details about its implementation.
 
 The peridynamic VES and EPS models in PDLAMMPS were implemented by
 R. Rahman and J. T. Foster at University of Texas at San Antonio.  The
 original VES formulation is described in "(Mitchell2011)" and the
 original EPS formulation is in "(Mitchell2011a)".  Additional PDF docs
 that describe the VES and EPS implementations are include in the
 LAMMPS distro in "doc/PDF/PDLammps_VES.pdf"_PDF/PDLammps_VES.pdf and
 "doc/PDF/PDLammps_EPS.pdf"_PDF/PDLammps_EPS.pdf.  For questions
 regarding the VES and EPS models in LAMMPS you can contact R. Rahman
 (rezwanur.rahman at utsa.edu).
 
 The following coefficients must be defined for each pair of atom types
 via the "pair_coeff"_pair_coeff.html command as in the examples above,
 or in the data file or restart files read by the
 "read_data"_read_data.html or "read_restart"_read_restart.html
 commands, or by mixing as described below.
 
 For the {peri/pmb} style:
 
 c (energy/distance/volume^2 units)
 horizon (distance units)
 s00 (unitless)
 alpha (unitless) :ul
 
 C is the effectively a spring constant for Peridynamic bonds, the
 horizon is a cutoff distance for truncating interactions, and s00 and
 alpha are used as a bond breaking criteria.  The units of c are such
 that c/distance = stiffness/volume^2, where stiffness is
 energy/distance^2 and volume is distance^3.  See the users guide for
 more details.
 
 For the {peri/lps} style:
 
 K (force/area units)
 G (force/area units)
 horizon (distance units)
 s00 (unitless)
 alpha (unitless) :ul
 
 K is the bulk modulus and G is the shear modulus.  The horizon is a
 cutoff distance for truncating interactions, and s00 and alpha are
 used as a bond breaking criteria. See the users guide for more
 details.
 
 For the {peri/ves} style:
 
 K (force/area units)
 G (force/area units)
 horizon (distance units)
 s00 (unitless)
 alpha (unitless)
 m_lambdai (unitless)
 m_taubi (unitless) :ul
 
 K is the bulk modulus and G is the shear modulus. The horizon is a
 cutoff distance for truncating interactions, and s00 and alpha are
 used as a bond breaking criteria. m_lambdai and m_taubi are the
 viscoelastic relaxation parameter and time constant,
 respectively. m_lambdai varies within zero to one. For very small
 values of m_lambdai the viscoelastic model responds very similar to a
 linear elastic model. For details please see the description in
 "(Mtchell2011)".
 
 For the {peri/eps} style:
 
 K (force/area units)
 G (force/area units)
 horizon (distance units)
 s00 (unitless)
 alpha (unitless)
-m_yield_stress (force/area units)
+m_yield_stress (force/area units) :ul
 
 K is the bulk modulus and G is the shear modulus. The horizon is a
 cutoff distance and s00 and alpha are used as a bond breaking
 criteria.  m_yield_stress is the yield stress of the material. For
 details please see the description in "(Mtchell2011a)".
 
 :line
 
 Styles with a {gpu}, {intel}, {kk}, {omp}, or {opt} suffix are
 functionally the same as the corresponding style without the suffix.
 They have been optimized to run faster, depending on your available
 hardware, as discussed in "Section 5"_Section_accelerate.html
 of the manual.  The accelerated styles take the same arguments and
 should produce the same results, except for round-off and precision
 issues.
 
 These accelerated styles are part of the GPU, USER-INTEL, KOKKOS,
 USER-OMP and OPT packages, respectively.  They are only enabled if
 LAMMPS was built with those packages.  See the "Making
 LAMMPS"_Section_start.html#start_3 section for more info.
 
 You can specify the accelerated styles explicitly in your input script
 by including their suffix, or you can use the "-suffix command-line
 switch"_Section_start.html#start_7 when you invoke LAMMPS, or you can
 use the "suffix"_suffix.html command in your input script.
 
 See "Section 5"_Section_accelerate.html of the manual for
 more instructions on how to use the accelerated styles effectively.
 
 :line
 
 [Mixing, shift, table, tail correction, restart, rRESPA info]:
 
 These pair styles do not support mixing.  Thus, coefficients for all
 I,J pairs must be specified explicitly.
 
 These pair styles do not support the "pair_modify"_pair_modify.html
 shift option.
 
 The "pair_modify"_pair_modify.html table and tail options are not
 relevant for these pair styles.
 
 These pair styles write their information to "binary restart
 files"_restart.html, so pair_style and pair_coeff commands do not need
 to be specified in an input script that reads a restart file.
 
 These pair styles can only be used via the {pair} keyword of the
 "run_style respa"_run_style.html command.  They do not support the
 {inner}, {middle}, {outer} keywords.
 
 :line
 
 [Restrictions:]
 
 All of these styles are part of the PERI package. They are only
 enabled if LAMMPS was built with that package.  See the "Making
 LAMMPS"_Section_start.html#start_3 section for more info.
 
 [Related commands:]
 
 "pair_coeff"_pair_coeff.html
 
 [Default:] none
 
 :line
 
 :link(Parks)
 [(Parks)] Parks, Lehoucq, Plimpton, Silling, Comp Phys Comm, 179(11),
 777-783 (2008).
 
 :link(Silling2000)
 [(Silling 2000)] Silling, J Mech Phys Solids, 48, 175-209 (2000).
 
 :link(Silling2007)
 [(Silling 2007)] Silling, Epton, Weckner, Xu, Askari, J Elasticity,
 88, 151-184 (2007).
 
 :link(Mitchell2011)
 [(Mitchell2011)] Mitchell. A non-local, ordinary-state-based
 viscoelasticity model for peridynamics. Sandia National Lab Report,
 8064:1-28 (2011).
 
 :link(Mitchell2011a)
 [(Mitchell2011a)] Mitchell. A Nonlocal, Ordinary, State-Based
 Plasticity Model for Peridynamics. Sandia National Lab Report,
 3166:1-34 (2011).