Eckhaus, W. (1973). Matched asymptotic expansions and singular perturbations. North-Holland Pub. Co. ; American Elsevier Pub. Co..
Chicago-referens (17:e uppl.)Eckhaus, Wiktor. Matched Asymptotic Expansions and Singular Perturbations. Amsterdam : New York: North-Holland Pub. Co. ; American Elsevier Pub. Co., 1973.
MLA-referens (8:e uppl.)Eckhaus, Wiktor. Matched Asymptotic Expansions and Singular Perturbations. North-Holland Pub. Co. ; American Elsevier Pub. Co., 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.