1. Hoffman, D., Karcher, H., Wei, F.: The genus one helicoid and the minimal surfaces that led to its discovery. In: Global Analysis and Modern Mathematics, ed. by K. Uhlenbeck, pp. 119–170. Publish or Perish Press 1993
2. Hoffman, D., Karcher, H., Wei, F.: The singly periodic genus-one helicoid. Comment. Math. Helv. 74, 248–279 (1999)
3. Hoffman, D., Wei, F.: Deforming the periodic genus-one helicoid. Experimental Math. 11, 207–218 (2002)
4. Karcher, H.: Embedded minimal surfaces derived from Scherk’s examples. Manuscr. Math. 62, 83–114 (1988)
5. Lynker, A.: Einfach periodische elliptische Minimalflächen. Diplomarbeit, Bonn 1993