Eckham, W. (1973). Matched asymptotic expansions and singular perturbation. Amsterdam.
Chicago Style aipamenaEckham, Wiktor. Matched Asymptotic Expansions and Singular Perturbation. Amsterdam, 1973.
MLA aipamenaEckham, Wiktor. Matched Asymptotic Expansions and Singular Perturbation. Amsterdam, 1973.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.