W. Lidicker Jr.

Extra-large body size in California voles: causes and fitness consequences
Lidicker, W. Z., and Richard S. Ostfeld. 1991. “Extra-Large Body Size In California Voles: Causes And Fitness Consequences”. Oikos 61: 108-121. http://www.caryinstitute.org/reprints/Lidicker_and_Ostfeld_1991_Oikos_61_108-121.pdf.