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Temporal variations of methane concentration and isotopic composition in groundwater of the St. Lawrence Lowlands, eastern
Canada; Rivard, C; Bordeleau, G; Lavoie, D; Lefebvre, R; Malet, X. Hydrogeology Journal vol. 26, issue 2, 2017 p. 533-551,
https://doi.org/10.1007/s10040-017-1677-y 
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(NRCan Cont.# 20170257)