Kp. Algorithms - ESA'97 / Rainer Burkard, Gerhard Woeginger (eds.). - Berlin, 1997. (Technical Univ. of Graz, Inst. of Mathematics)

Kp. Assignment and matching problems / Rainer E. Burkard, Urlich Derigs. - Berlin, 1980. (Mathenatisches Institüt, Univ. Köln, Köln, FRG)

LCC online

Methoden der Ganzzahligen optimierung / R. E. Burkard. - Wien, 1972.

Conjugacy type problems in the ring of formal power series / Jacek Haneczok. - Graz, 2009. Red.