@article{DBLP:journals/eatcs/EhrigHP09,
author = {Hartmut Ehrig and
Frank Hermann and
Ulrike Prange},
title = {Cospan DPO Approach: An Alternative for DPO Graph Transformations},
journal = {Bulletin of the EATCS},
volume = {98},
year = {2009},
pages = {139-149},
bibsource = {DBLP, http://dblp.uni-trier.de}
}