Remarks on vacuum state and uniqueness of concentration process. Danilov, Vladimir G. — 2008 Electronic Journal of Differential Equations (EJDE) [electronic only]
Weak asymptotic method for the study of propagation and interaction of infinitely narrow δ -solitons. Danilov, Vladimir G.; Omel'yanov, Georgii A. — 2003 Electronic Journal of Differential Equations (EJDE) [electronic only]