@article {walker2001consolidation,
	title = {The consolidation/transition model in moral reasoning development.},
	journal = {Developmental Psychology},
	volume = {37},
	number = {2},
	year = {2001},
	pages = {187},
	publisher = {American Psychological Association},
	doi = {10.1037//0012-1649.37.2.187},
	author = {Walker, L.J. and Gustafson, P. and Hennig, K.H.}
}
