APA (7th ed.) Citation

Spichak, S., & Спічак, С. (2006). Preliminary group classification of general two-dimensional quasi-linear elliptic type equations. Інститут математики НАН України.

Chicago Style (17th ed.) Citation

Spichak, S., and С Спічак. Preliminary Group Classification of General Two-dimensional Quasi-linear Elliptic Type Equations. Інститут математики НАН України, 2006.

MLA (8th ed.) Citation

Spichak, S., and С Спічак. Preliminary Group Classification of General Two-dimensional Quasi-linear Elliptic Type Equations. Інститут математики НАН України, 2006.

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