@inbook{Perlman1981,
author = {Perlman, D. and Peplau, L.A.},
title= {Toward a social psychology of Loneliness},
year = {1981},
editor = {Duck, S.},
editor = {Gilmour, R.},
booktitle = {Personal relationships in disorder},
address = {London},
publisher = {Academic Press},
pages = {31--56},
}