Geodesic
Topological Recursion Relation for $\psi_1\psi_2$ in $\overline{\mathcal{M}}_{2,2}$
Funkcionalʹnyj analiz i ego priloženiâ, Tome 42 (2008) no. 1, pp. 91-94.

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We give the definition of the full potential with descendants, which is a genus expansion of the Barannikov–Kontsevich solution of the WDVV equation. This potential satisfies the Getzler relation, which comes from the geometry of the moduli space of curves $\overline{\mathcal{M}}_{2,2}$.
Keywords: WDVV equation, tautological relations. 
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I. I. Shneiberg. Topological Recursion Relation for $\psi_1\psi_2$ in $\overline{\mathcal{M}}_{2,2}$. Funkcionalʹnyj analiz i ego priloženiâ, Tome 42 (2008) no. 1, pp. 91-94. http://geodesic.mathdoc.fr/item/FAA_2008_42_1_a10/

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