Shotov A.P. ,     Gorghunov B.M. ,     Zasavitsky I.I. ,     Koloshnikov V.G. ,     Kurisyn Y.A. ,     Vedeneeva G.V. High resolution spectroscopy with Pb_1-xSn_xSe cw and pulsed diode lasers. Applications to 14~NH_3 and 15~NH_3 ammonia isotops. 5-th Int.seminar on high resoluyion infrared spectroscopy, Liblice Near Prague, 18-22 sept. 1978 , с. P.43-44   Shotov A.P. ,     Gorghunov B.M. ,     Zasavitsky I.I. ,     Koloshnikov V.G. ,     Kurisyn Y.A. ,     Vedeneeva G.V. CW and pulsed Pb_1-xSn_xSe diode laser spectroscopy of ~14NH_3 and ~15NH_3 molecules. Opt.Commun. , Vol.28,N1 , с. S.64-68 , 01.1979   Shotov A.P. ,     Zasavitsky I.I. ,     Koloshnikov V.G. ,     Kurisyn Y.A. ,     Pak I. ,     Ulitskiy N.I. ,     Kharlamov B.M. ,     Britov A.D. Zeeman effect in the IR spectrum of a molecule without an electronic moment. Observation with a tunable diode laser. Opt.Commun. , Vol.35,N2 , с. C.213-217 , 01.1980