Stephen Roehrig

Planning for meals-on-wheels: algorithms and application

Hakan Yildiz, Michael P. Johnson, Stephen Roehrig, 2013, J. Oper. Res. Soc..

Spatial decision support system for home-delivered services

Michael Johnson, Wilpen Gorr, Stephen Roehrig, 2001, J. Geogr. Syst..

Location of Service Facilities for the Elderly

Michael P. Johnson, Wilpen Gorr, Stephen Roehrig, 2005, Ann. Oper. Res..