Optimal priority queues: The simple discretionary priority rule. - Maximilian M. Etschmaier (Z. Oper. Research, 1972)

Fuzzy controls for maintenance scheduling in transportation systems. - Maximilian M. Etschmaier (Autom., 1980)

Airline Scheduling: An Overview. - Maximilian M. Etschmaier; Dennis F. X. Mathaisel (Transp. Sci., 1985)