@INPROCEEDINGS( PSC2006a, author = "Gad M. Landau", title = "Can dist tables be merged in linear time -- {A}n Open Problem", booktitle = "Proceedings of the Prague Stringology Conference~'06", address = "Czech Technical University in Prague, Czech Republic", editor = "Jan Holub and Jan {\v{Z}}{\v{d}}{\'{a}}rek", isbn = "80-01-03533-6", year = 2006, pages = "1", note = "abstract of invited talk", bibsource="http://www.stringology.org/event/2006/psc06p01.bib", )