Castelo R and Roverato A (2006). “A robust procedure for Gaussian graphical model search from microarray data with p larger than n.” J Mach Learn Res, 7, pp. 2621-50.

Castelo R and Roverato A (2009). “Reverse engineering molecular regulatory networks from microarray data with qp-graphs.” J Comput Biol, 16(2), pp. 213-27.