A. Nicoletta

Analysis of protein sequence/structure similarity relationships.

Tamar Schlick, Samuela Pasquali, Hin Hark Gan, 2002, Biophysical journal.

Stabilization of helical peptides by mixed spaced salt bridges.

V. Morozov, N. Kallenbach, J. Ernst, 1996, Journal of biomolecular structure & dynamics.