TY - JOUR AU - Peter Bender BT - Physical Review DA - Jan-12-1962 DO - 10.1103/PhysRev.128.2218 PY - 1962 SP - 2218 EP - 2221 T2 - Physical Review TI - Comparison of the Rubidium-87 and Proton Zeeman Transition Frequencies in the Earth\textquoterights Magnetic Field VL - 128 SN - 0031-899X ER -