%% -*-BibTeX-*- @Article{HeScZu05, author = "A. Hertz and D. Schindl and N. Zufferey", title = "Lower bounding and tabu search procedures for the frequency assignment problem with polarization constraints", journal = "4OR: Quarterly Journal of the Belgian, French and Italian Operations Research Societies", volume = "3", number = "2", pages = "139--161", year = "2005", URL = "http://www.springerlink.com/openurl.asp?genre=article&issn=1619-4500&volume=3&issue=2&spage=139", language = "English", }