Pinckney, J. L., Richardson, T. L., Millie, D. F., & Paerl, H. W. (2001). Application of photopigment biomarkers for quantifying microalgal community composition and in situ growth rates. Organic Geochemistry, 32(4), 585–595. https://doi.org/10.1016/s0146-6380(00)00196-0