@article{article33173a99,
title   = {A proton NMR study on agregation of cationic surfactants in water: effects of the structure of the headgroup},
author = {Okano, L T and El Seoud, Omar A and Halstead, T},
year = {1997},
doi = {10.1007/s003960050063},
journal   = {Colloid and Polymer Science}
}