@inproceedings{DasMarVic_j2008, author = {J{\"u}rgen~Dassow and Gema~M.~Mart\'{\i}n and Francisco~J.~Vico}, title = {Some Operations Preserving Primitivity of Words}, booktitle = {Colloquium on the Occasion of the 50th Birthday of Victor Mitrana. Proceedings}, year = {2008}, publisher = {Otto-von-Guericke-Universit{\"a}t Magdeburg, Germany}, pages = {11--28}, url = {http://theo.cs.uni-magdeburg.de/pubs/papers/coll_mit-dassow.pdf} }