TY - RPRT TI - Mathematical models and population cycles: A critical evaluation of a recent modeling effort AU - J.D. Nichols AU - J.B. Hestbeck AU - W. Conley PY - 1979 DO - 10.1007/bf00276311 UR - https://pubs.usgs.gov/publication/5222486 ID - 5222486 ER -