@incollection{Butler11,
author = {J. E. Butler and Xiu-Zhu Sun and Nancy Wertz},
title = {Immunoglobulin Polygeny: An Evolutionary Perspective},
booktitle = {Gene Duplication},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Felix Friedberg},
chapter = {7},
doi = {10.5772/24609},
url = {https://doi.org/10.5772/24609}
}