Reference:
M. Koivisto and Heikki Mannila. Offspring risk and sibling risk for multilocus traits. Human Heredity, 51:209–216, 2001.
Suggested BibTeX entry:
@article{koivistohh, author = {M. Koivisto and Heikki Mannila}, journal = {Human Heredity}, pages = {209-216}, title = {Offspring risk and sibling risk for multilocus traits}, volume = {51}, year = {2001}, }