(NoSOBYE TRAEKTORII SISTEMY SWOBODNYH MATERIALXNYH TO^EK (B/s - (NsOKOLOW(B, (N`(B.(Nd(B.s ((NkIEW (B:s (NiZD(B-(NWO an ussr(B,s, 1951)
Keywords: (NmEHANIKAs