by Avery, R., Behrsing, G., Chupp, W. W., Faltens, A., Hartwig, E. C., Hernandez, H. P., Macdonald, C., Meneghetti, J. R., Nemetz, R. G., Popenuck, W., Salsig, W., Vanecek, D.
Published in IEEE transactions on nuclear science (01.01.1971)