The absolute frequency reference unit for the spaceborne methane-sensing lidar mission MERLIN
1998 ◽
Vol 151
(4-6)
◽
pp. 229-234
◽
1978 ◽
Vol 124
(3)
◽
pp. 487-499
◽
2013 ◽
Vol 27
(4)
◽
pp. 1010-1018
◽