(NaWIACIONNYE GIDROSKOPI^ESKIE PRIBORYs (NU^EBNIK DLQ STUDENTOW WUZOWs - (NfRIDLENDER(B,(Ng(B. (No(B.s; (NkOZLOW(B,(Nm(B. (Ns(B.s ((Nm(B.s (NoBORONGIZs, 1961)