@inproceedings{inproceedings03af7deb, title = {Electred ionization chamber and neutron monitor}, author = {Ghilardi, A J P and Pela, C A and Ghilardi Netto, Thomaz and De Paula, E and Navas, E A and Zimmerman, Robert Lee}, year = {1991}, publisher = {University of Bologna}, booktitle = {International Scientific Instrument Symposium} }