(NpO^TI PERIODI^ESKIE ORBITY W NEBESNOJ MEHANIKE (B/s - (NaKSENOW(B, (Ne(B.(Np(B.s; (NgOSUDARSTWENNYJ ASTRONOMI^ESKIJ INSTITUT IM(B. (Np(B.(Nk(B.(N{TERNBERGAs ((NmOSKWA (B:s (Nmgu(B,s, 1990)
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Keywords: (NnEBESNAQ MEHANIKAs