APA (7th ed.) Citation

Gao, F., & Gao, L. (2010). Microscopic models of hardness. Сверхтвердые материалы.

Chicago Style (17th ed.) Citation

Gao, F.M, and L.H Gao. "Microscopic Models of Hardness." Сверхтвердые материалы 2010.

MLA (8th ed.) Citation

Gao, F.M, and L.H Gao. "Microscopic Models of Hardness." Сверхтвердые материалы, 2010.

Warning: These citations may not always be 100% accurate.