Contact
| Email (work) | visserr@umich.edu |
| Email (private) | ruudvisser@gmail.com |
| Phone | +1 734 615 4714 |
| Fax | +1 734 763 6317 |
| Address | University of Michigan Department of Astronomy 500 Church Street 745 Dennison Building Ann Arbor, Michigan 48109-1042 United States of America |