Search for 'au:Kravkov' with limit(s): 'suppress:false'

... Effect of indirect light stimulation as a function of the intensity of a direct stimulus

By By S. V. Kravkov.
[Moscow 1937 .
С. 96-103 , [В изд.]: Ophthalmologica separatum. Moscow. 1937. Vol. 15, с. 96-103, с табл. и черт. | Без тит. л. и обл. 25 см.

... The influence of acoustic stimulation upon the colour-sensibility of a protanopic eye

By By prof. dr. S. V. Kravkov.
[Moscow 1937 .
С. 337-342 , [В изд.]: Separatum acta Ophthalmologica. Moscow 1937 Vol. 15. с. 337-342. с табл. и диагр. | Без тит. л. и обл. 24 см.

Recherches sur quelques-unes des propriétes physiques du terreau des steppes

By S.Kravkoff.
St.Pétersbourg 8°.

Achievements of Russian science in the field of agricultural pedology

By S. P. Kravkov.
Leningrad Publishing Office of the Academy 1927 .
26, [1] с. , Без тит. л. Описано по обл. 24 см.

Untersuchungen einigen physikalischen Eigenschaften der Schwarzerde in der Ursteppe

By S.Krawkow.
СПб 8°.

Altьn taq

By перевод Ф. Кусургашева.
Novosibirsk OGIZ 1935 .
60,[4] c. 23.