TY - GEN AU - Rinsland, Curtis P. AU - Levine, Curtis TI - Free tropospheric carbon monoxide concentrations in 1950 and 1951 deduced from infrared total column amount measurements KW - MONOXIDO DE CARBONO KW - ALPES,EUROPA KW - 551.510.4 KW - med KW - fre KW - 546.262(234.3) ER -