TY - RPRT TI - Environmental clustering of lakes to evaluate performance of a macrophyte index of biotic integrity AU - Bruce C. Vondracek AU - Bruce Vondracek AU - Lorin K. Hatch PY - 2013 DO - 10.1016/j.aquabot.2013.02.003 UR - https://pubs.usgs.gov/publication/70173476 ID - 70173476 ER -