by L.V. Metlitskil | .
by L.V. Metlitskil Et.Al | .
by E.P. Yatsuk Et.Al | .
by S.S. Khokhlov | .
by V.I. Tobias | .
by I.S. Popushoi | .
by V.M. Fridland | .
by L. P. Poznanin | .
by Mvdr. Zdenek Lucky | .
by E. M. Karmanova | .
by P S .Nartov | .
by A. A. Mozgovoi | V.I. Shakhmatova.
by I. A. Muromtsev | .
by Yu. L. Rauner | .
by Basil J . Moore | .
by D. Butler | .
by Novikov, V.M.
by SOLOV'EVA, G I.
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