APA (7th ed.) Citation

Choliy, V. (2014). On the extension of Helmert transform. Advances in Astronomy and Space Physics.

Chicago Style (17th ed.) Citation

Choliy, V.Ya. "On the Extension of Helmert Transform." Advances in Astronomy and Space Physics 2014.

MLA (8th ed.) Citation

Choliy, V.Ya. "On the Extension of Helmert Transform." Advances in Astronomy and Space Physics, 2014.

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