@INPROCEEDINGS( PSC2013-4, 
 author = " Kazuhiko Kusano and Kazuyuki Narisawa and Ayumi Shinohara ",
 title = "On Morphisms Generating Run-Rich Strings",
 booktitle = "Proceedings of the Prague Stringology Conference 2013",
 address = "Czech Technical University in Prague, Czech Republic",
 editor = "Jan Holub and Jan {\v{Z}}{\v{d}}{\'{a}}rek",
 isbn = "978-80-01-05330-0",
 year = 2013,
 pages = "35--47",
)