Pascher, I., Sundell, S., Eibl, H., & Harlos, K. (1984). Interactions and space requirement of the phosphate head group of membrane lipids: The single crystal structures of a triclinic and a monoclinic form of hexadecyl-2-deoxyglycerophosphoric acid monohydrate. Chemistry and Physics of Lipids, 35(2), 103-115. doi:10.1016/0009-3084(84)90016-1.