Whittle SJ & Casselton PJ (1969) The chloroplast pigments of some green and yellow-green algae. British Phycological Journal 4(1): 55-64. DOI: 10.1080/00071616900650041
Morris GJ (1978) Cryopreservation of 250 strains of Chlorococcales by the method of two-step cooling European Journal of Phycology 13: 15-24. DOI: 10.1080/00071617800650031