%0 Journal Article %A D. Degrijse %T On a Filtration of the Second Cohomology of Nilpotent Lie Algebras %J Journal of Lie Theory %D 2013 %P 551-573 %V 23 %N 2 %U https://jolt.centre-mersenne.org/articles/10.5802/jolt.737/ %R 10.5802/jolt.737 %F JOLT_2013_23_2_a9