@TECHREPORT{Schnell2010,
author = {Rainer Schnell},
title = {Biological variables in social surveys},
year = {2010},
institution = {Rat für Sozial- und Wirtschaftsdaten},
number = {138},
series = {RatSWD Working Paper Series},
abstract = {Social scientists have long virtually ignored the biological constraints of human behavior. Yet if the prediction of behavior is considered essential to a social science, neglecting any variable that might influence human behavior is unacceptable. This paper provides examples of important biological variables and describes their measurement in social surveys.},
url = {http://www.ratswd.de/download/RatSWD_WP_2010/RatSWD_WP_138.pdf}
}