| 1 | Two authors collaborated on this novel. | |
| 2 | Start with the three books he authored and the one he co-authored. | |
| 3 | They're very fragile and delicate, " said Min Xu, a paper coauthor and research assistant professor at the Feinberg School. | |
| 4 | 'Women tend to experience a wider variety of dreams than men, ' explains dream researcher Professor Kelly Bulkeley, co-author of Dreaming In The Classroom. | |
| 5 | "Incompetence alone doesn' t lead to aggression, " said Serena Chen, associate professor of psychology at University of California and co-author of the study. |