TY - RPRT TI - Supplement to Water-Resources Investigations Report 99-4122, lake-level frequency analysis for the Waubay Lakes Chain, northeastern South Dakota AU - Colin A. Niehus AU - Aldo V. Vecchia AU - Ryan F. Thompson PY - 1999 DO - 10.3133/wri994251 UR - https://pubs.usgs.gov/publication/wri994251 ID - wri994251 ER -