Capital budgeting techniques under fuzzy information. - Cengiz Kahraman; Ethem Tolga (ICTAI, 1998)

Fuzzy Decision Making Under Uncertainty. - Cengiz Kahraman; Ethem Tolga (IEA/AIE (Vol. 1), 1998)

Data Envelopment Analysis using Fuzzy Concept. - Cengiz Kahraman; Ethem Tolga (ISMVL, 1998)

Capital budgeting techniques using discounted fuzzy versus probabilistic cash flows. - Cengiz Kahraman; Da Ruan 001; Ethem Tolga (Inf. Sci., 2002)

Product Development Process Using a Fuzzy Compromise-Based Goal Programming Approach. - Ethem Tolga; S. Emre Alptekin (ICCSA (1), 2007)

Product evaluation and development process using a fuzzy compromise-based goal programming approach. - Ethem Tolga; S. Emre Alptekin (J. Intell. Fuzzy Syst., 2008)

A real options approach for evaluation and justification of a hospital information system. - C. Okan Özogul; E. Ertugrul Karsak; Ethem Tolga (J. Syst. Softw., 2009)