Bernd Mayer Giancarlo Marconi Circular dichroic constrained structure optimization of homoalanine peptides. 270-281 2000 21 Journal of Computational Chemistry 4 http://dx.doi.org/10.1002/(SICI)1096-987X(200003)21:4<270::AID-JCC3>3.0.CO;2-V db/journals/jcc/jcc21.html#MayerM00