Eckham, W. (1973). Matched asymptotic expansions and singular perturbation. Amsterdam.
Dyfyniad Arddull ChicagoEckham, Wiktor. Matched Asymptotic Expansions and Singular Perturbation. Amsterdam, 1973.
Dyfyniad MLAEckham, Wiktor. Matched Asymptotic Expansions and Singular Perturbation. Amsterdam, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.