@article{Asendorpf1990,
author = {Asendorpf, J.B.},
title= {Beyond Social Withdrawal: Shyness, Unsociability, and Peer Avoidance},
year = {1990},
doi = {10.1159/000276522},
journal = {Human Development},
volume = {33},
number = {4-5},
pages = {250--259},
}