As a new aspect of the Arnold strange duality among 14 unimodal singularities, we point out that there exists a duality in linking pairing on Seifert manifolds associated with singularities.
"Duality of linking pairing in Arnold’s singularities." Proc. Japan Acad. Ser. A Math. Sci. 84 (7) 81 - 86, July 2008. https://doi.org/10.3792/pjaa.84.81