@ARTICLE{DasPau_j1998, author = {J{\"u}rgen~Dassow and Gheorghe~P\u{a}un}, title = {Remarks on operations suggested by mutations in genomes}, journal = fundinform, year = 1998, volume = 36, pages = {183--200}, url = {http://fi.mimuw.edu.pl/abs36.html#8} }