TY - RPRT TI - Lake-level frequency analysis for the Waubay Lakes Chain, northeastern South Dakota AU - C. A. Niehus AU - A. V. Vecchia AU - R. F. Thompson PY - 1999 DO - 10.3133/wri994122 UR - https://pubs.usgs.gov/publication/wri994122 ID - wri994122 ER -