@ARTICLE\{IMM1990-03706, author = "V. V. Vidal and J. A. Ferreira", title = "Optimal partition of an interval - a theoretical discussion", year = "1990", pages = "15-33", journal = "{INESC} Journal of Research and Development", volume = "1", editor = "", number = "2", publisher = "", url = "http://www2.compute.dtu.dk/pubdb/pubs/3706-full.html" }