@article {Daan:1968:0028-2960:525, author = "Daan, N.", author = "Ringelberg, J.", title = "Further Studies On the Positive and Negative Phototactic Reaction of Daphnia Magna Straus", journal = "Netherlands Journal of Zoology", volume = "19", year = "1968", abstract = "", pages = "525-540(16)", url = "http://www.ingentaconnect.com/content/brill/njz/1968/00000019/00000004/art00002" doi = "doi:10.1163/002829669X00026" }