2019
Том 71
№ 5

All Issues

Lifshitz E. A.

Articles: 1
Brief Communications (Russian)

On a principle of duality

Krasnosel'skii M. A., Lifshitz E. A.

Full text (.pdf)

Ukr. Mat. Zh. - 1965. - 17, № 5. - pp. 119-122