(NkRAEWYE ZADA^I DLQ SINGULQRNYH DIFFERENCIALXNYH URAWNENIJ s - (NkWEDARAS(B, (Nb(B.s; (NiNSTITUT MATEMATIKI I I KIBERNETIKI an lITssrs ((NwILXN@S(B:s (Nb(B. (NIs, 1978)
Keywords: (NsTATISTI^ESKIE PROBLEMY UPRAWLENIQs