GENERATION OF 2ND HARMONICS IN LINBO3-TI BAND WAVEGUIDE СтатьяBIKEEV O.N., DERYUGIN L.N., REUTOV A.T.ЖУРНАЛ ТЕХНИЧЕСКОЙ ФИЗИКИ. Том 49. 1979. С. 2499-2501
YIELD STRUCTURE OF FORAGE GRASSES IN MONODOMINANT STANDS СтатьяBELIUCHENKO I.S.BEITRAGE ZUR TROPISCHEN LANDWIRTSCHAFT UND VETERINARMEDIZIN. Том 16. 1978. С. 121-135