@misc{misc484323de,
title   = {Calix[4] arene lower rim ionic interaction and the formation of intra-molecular complexes},
author = {Piro, Oscar E and Castellano, Eduardo Ernesto and Namor, Angela F Danil de},
year = {2002},
publisher = {Blackwell Munkgaard},
booktitle   = {Congress and General Assembly of the International Union of Crystallography}
}