An empirical study on the efficiency of different design pattern representations in UML class diagrams. - Gerardo Cepeda Porras; Yann-Gaël Guéhéneuc (Empir. Softw. Eng., 2010)

Professional status and expertise for UML class diagram comprehension: An empirical study. - Zéphyrin Soh; Zohreh Sharafi; Bertrand Van den Plas; Gerardo Cepeda Porras; Yann-Gaël Guéhéneuc; Giuliano Antoniol (ICPC, 2012)