Ramos Rodríguez, Eloísa, et al. “Strict Stoichiometric Homeostasis of Cryptomonas Pyrenoidifera (Cryptophyceae) in Relation to N:P Supply Ratios”. Journal of Limnology, vol. 76, no. 1, Nov. 2016, doi:10.4081/jlimnol.2016.1487.