0-387-94670-5 Reid, Constance Hilbert (Springer, 1996) ISBN 0-387-94674-8 Sommerfeld, Arnold, translated from the fourth German edition by Martin O. Stern Mechanics
NY Times Interview 3 29 05 (页面存档备份,存于互联网档案馆) Raussen, Martin; Christian Skau. Interview with Peter D. Lax (PDF). Notices of the American Mathematical Society
[2016-07-09]. (原始内容存档于2016-06-29). Everson, Michael; Hosken, Martin; Constable, Peter. Revised proposal for encoding the Lanna script in the BMP of the