@article{Witte+2001+66+73,
url = {https://doi.org/10.3790/vjh.70.1.66},
title = {Toward a Longitudinal, Multi-Dimensional Class Model},
title = {},
author = {James C Witte},
pages = {66--73},
volume = {70},
number = {1},
journal = {Vierteljahrshefte zur Wirtschaftsforschung},
doi = {doi:10.3790/vjh.70.1.66},
year = {2001},
lastchecked = {2001-01-01}
}