Bogoliubov, N. N., & Mitropolsky Y A. (1961). Asymptotic methods in the theory of non-linear Oscillalions. Hindustan Publishing Corpn..
Chicago Edition CitationBogoliubov, N N., and Mitropolsky Y A. Asymptotic Methods in the Theory of Non-linear Oscillalions. Hindustan Publishing Corpn., 1961.
MLA Edition CitationBogoliubov, N N., and Mitropolsky Y A. Asymptotic Methods in the Theory of Non-linear Oscillalions. Hindustan Publishing Corpn., 1961.
Warning: These citations may not always be 100% accurate.