References
- Brooks, A. S. & Torke, B. G., 1977: The vertical and seasonal distribution of chlorophyll a in Lake Michigan. — J. Fish. Res. Bd. Can. 34 (12): 2280–2287.
- Mortonson, J. A., 1977: The vertical distribution of chlorophyll a and nutrients at a deep station in Lake Michigan. — M. S. Thesis, The Univ. of Wisconsin-Milwaukee, 70 p.
- Ristic, J., 1977: Seasonal and vertical distribution of phytoplankton at an offshore station in Lake Michigan. — M. S. Thesis, The Univ. of Wisconsin-Milwaukee, 131 p.