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Coassociativity, cohomology and Gerstenhaber algebrasPaal, EugenAlgebras, groups and geometries1998 / p. 85-93

Geodesic loops and BRST-like cohomologyKuusk, Piret; Paal, EugenProceedings of the Estonian Academy of Sciences. Physics. Mathematics1996 / 2/3, p. 128-133

Local differentiable loops and BRST-like cohomologyKuusk, Piret; Paal, EugenAlgebras, groups and geometries1996 / p. 465-469

Operads and cohomologyKluge, Liivi; Paal, EugenAlgebras, groups and geometries2004 / p. 1-7

Operads and nonassociative deformationsPaal, EugenNon-associative algebra and its applications2006 / p. 323-328 https://www.taylorfrancis.com/chapters/edit/10.1201/9781420003451-34/operads-nonassociative-deformations-eugen-paal