@inbook{Flap2013,
author = {Flap, H.D. and Völker, B.},
title= {Social capital},
year = {2013},
editor = {Wittek, R.},
editor = {Snijders, T.A.B.},
editor = {Nee, V.},
booktitle = {The handbook of rational choice social research},
address = {Stanford},
publisher = {Stanford University Press},
pages = {220--251},
}