@InProceedings{NavaraPetrikSarkoci:Linz2009,
  IS = { zkontrolovano 29 Jan 2010 },
  UPDATE  = { 2009-09-29 },
author       = { Navara, Mirko and Petr{\'\i}k, Milan and Sarkoci, Peter },
title        = { Convex combinations of triangular norms },
year         = { 2009 },
pages        = { 85--87 },
booktitle    = { 30th Linz Seminar on Fuzzy Set Theory: The Legacy of 30
                 Seminars---Where Do We Stand and Where Do We Go? },
editor       = { Bodenhofer, Ulrich and De Baets, Bernard and Klement, Erich
                 Peter and Saminger-Platz, Susanne },
publisher    = { Universit{\"a}tsdirektion, Johannes Kepler University },
address      = { Johannes Kepler Universit{\"a}t, Linz, Austria},
isbn         = { none },
book_pages   = { 124 },
month        = { February },
day          = { 3--7 },
venue        = { Linz, Austria },
organization = { Johannes Kepler Universit{\"a}t },
annote = { Alsina, Frank, and Schweizer stated, as an open problem, a
  question whether a non-trivial convex combination of two triangular
  norms can ever be a triangular norm again. The piresentation gives
  an overview of the results done in this field presenting also the
  contributions of the authors. },
keywords     = { Triangular norm, convex combination, associativity },
authorship   = { 34-33-33 },
project      = { MSM 6840770038, GACR 201/07/1136 },
psurl        = { [PDF] },
www          = { http://www.flll.jku.at/research/linz2009 },
}