APA (7th ed.) Citation

Oliveira, N., Henriques, P. R., Cruz, D., Pereira, M. J., Mernik, M., Kosar, T., & Crepinsek, M. (2009). Applying program comprehension techniques to Karel robot programs.

Chicago Style (17th ed.) Citation

Oliveira, Nuno, Pedro Rangel Henriques, Daniela Cruz, Maria João Pereira, Marjan Mernik, Tomaz Kosar, and Matej Crepinsek. Applying Program Comprehension Techniques to Karel Robot Programs. 2009.

MLA (8th ed.) Citation

Oliveira, Nuno, et al. Applying Program Comprehension Techniques to Karel Robot Programs. 2009.