@inbook{Atchley1975,
author = {Atchley, R.C.},
title= {The life course, age grading, and age-linked demands for decision-making},
year = {1975},
editor = {Datan, N.},
editor = {Ginsberg, L.H.},
booktitle = {Life-span developmental psychology},
address = {New York},
publisher = {Academic Press},
pages = {261--278},
}