TY - CONF AU - Moore, F C2 - 19^uth^ INS Intl. Symp. on Cooler Rings and Their Application , Tokyo, JA DA - 1991-01-01 LA - en PB - 19^uth^ INS Intl. Symp. on Cooler Rings and Their Application , Tokyo, JA PY - 1991 TI - Penning Trap Experiments at the University of Washington and at NIST in Boulder ER -