(NrABO^IJ [PIONAV W aMERIKE (B/s - (NgOWARD(B, (NsIDNEJs; (NrOBERT(B, (Nd\NNOs; (NrUBIN[TEJN(B, (Nd(B.(Nb(B.s ((NmOSKWA (B;s (NlENINGRAD s (NgOS(B. (NIZD(B-(NWO(B, s, 1927)
Keywords: (NrABO^IJ [PIONAVs -- (NaMERIKAs