Martins, R. M. F., Lourenço, N. C. C., & Horta, N. C. G. (2013). Generating analog IC Layouts with LAYGEN II. Springer Berlin Heidelberg Imprint Springer.

Martins, Ricardo M. F., Nuno C. C. Lourenço, and Nuno C. G. Horta. Generating Analog IC Layouts with LAYGEN II. Berlin, Heidelberg: Springer Berlin Heidelberg Imprint Springer, 2013.

Martins, Ricardo M. F., et al. Generating Analog IC Layouts with LAYGEN II. Springer Berlin Heidelberg Imprint Springer, 2013.