Lapinsh, M., Gutcaits, A., Prusis, P., Post, C., Lundstedt, T., & Wikberg, J. E. (2002). Classification of G-protein coupled receptors by alignment-independent extraction of principal chemical properties of primary amino acid sequences. Cold Spring Harbor Laboratory Press.

Lapinsh, Maris, Alexandrs Gutcaits, Peteris Prusis, Claes Post, Torbjörn Lundstedt, and Jarl E.S Wikberg. Classification of G-protein Coupled Receptors By Alignment-independent Extraction of Principal Chemical Properties of Primary Amino Acid Sequences. Cold Spring Harbor Laboratory Press, 2002.

Lapinsh, Maris, et al. Classification of G-protein Coupled Receptors By Alignment-independent Extraction of Principal Chemical Properties of Primary Amino Acid Sequences. Cold Spring Harbor Laboratory Press, 2002.