@article{KUG2001,
   abstract = {A diatomic elastic chain with nonlinear interparticle interaction
placed in a nonlinear external potential is considered. A detailed
classification of possible two-parametric traveling gap- and near-gap-soliton
solutions for this system is given for different relative strengths
of the nonlinearities. Analytical expressions are derived for traveling
near-gap solitons in the absence of an external field. (C) 2001 MAIK
``Nauka/Interperiodica\{''\}.},
   author = {A S Kovalev and O V Usatenko and A V Gorbach},
   issn = {1063-7834},
   issue = {9},
   journal = {PHYSICS OF THE SOLID STATE},
   pages = {1665-1674},
   title = {Traveling solitons in modulated elastic media},
   volume = {43},
   year = {2001}
}