2017
Debra Umberson, Julie Olson, Robert Crosnoe, Hui Liu, Tetyana Pudrovska, Rachel Donnelly
Proceedings of the National Academy of Sciences of the United States of America, 2017
2008
Mary Ofstedal, Deborah Carr, Robert Crosnoe, Mary Hughes, Amy Pienta
Encyclopedia of the Life Course and Human Development, Gale, 2008