The IM2000 Research Programme. - Leo Brecht; Hubert Österle (Electron. Mark., 1993)

Evaluating existing information systems from a business process perspective. - Martin W. Mende; Leo Brecht; Hubert Österle (SIGCPR, 1994)

Stand und Defizite der Methoden des Business Process Redesign. - Thomas Hess; Leo Brecht; Hubert Österle (Wirtschaftsinf., 1995)

Experimental evaluation of parameter settings in calculation of hybrid similarities: effects of first- and second-order similarity, edge cutting, and weighting factors. - Fabian Meyer-Brötz; Edgar Schiebel; Leo Brecht (Scientometrics, 2017)