TY - RPRT TI - Preliminary evaluation of an in vivo fluorometer to quantify algal periphyton biomass and community composition AU - Theodore D. Harris AU - Jennifer L. Graham PY - 2015 DO - 10.1080/10402381.2015.1025153 UR - https://pubs.usgs.gov/publication/70170584 ID - 70170584 ER -