Operational Research. An International Journal [electronic only]. The Scientific Journal of the Hellenic Operational Research Society. Springer, Berlin/Heidelberg. English. [1 vol. (= 3 issues) a year]

Journal, ISSN 1109-2858; 1866-1505/e

http://link.springer.com/journal/volumesAndIssues/12351
http://www.ergasya.tuc.gr/orij/

Published electronic only as of Vol. 14 (2014). Print ISSN until then: 1109-2858.