The Molecular Biology Toolkit (MBT): a modular platform for developing molecular visualization applications. - John L. Moreland; Apostol Gramada; Oleksandr V. Buzko; Qing Zhang; Philip E. Bourne (BMC Bioinform., 2005)

Multipolar representation of protein structure. - Apostol Gramada; Philip E. Bourne (BMC Bioinform., 2006)

Coarse-graining the electrostatic potential via distributed multipole expansions. - Apostol Gramada; Philip E. Bourne (Comput. Phys. Commun., 2011)