TY - JOUR AU - V. G. Danilov AU - V. P. Maslov AU - V. M. Shelkovich TI - Algebras of the singularities of singular solutions to first-order quasi-linear strictly hyperbolic systems JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1998 SP - 3 EP - 55 VL - 114 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1998_114_1_a0/ LA - ru ID - TMF_1998_114_1_a0 ER -