Kokurin Y. L. Current status and future prospects of lunar laser-ranging studies (review) (англ.) // Soviet Journal of Quantum Electronics. — 1976. — Vol. 6, iss. 6. — P. 645–657. — doi:10.1070/qe1976v006n06abeh011563.
Kokurin Y. L. Current status and future prospects of lunar laser-ranging studies (review) (англ.) // Soviet Journal of Quantum Electronics. — 1976. — Vol. 6, iss. 6. — P. 645–657. — doi:10.1070/qe1976v006n06abeh011563.