A note on the rational cuspidal curves
  In this short note we give an elementary combinatorial argument, showing that the Conjecture of J. Fern\'andez de Bobadilla, I. Luengo, A. Melle-Hern\'andez, A. N\'emethi follows from the results of M. Borodzik and C. Livingston in the case of rational cuspidal curves with two critical points. 
Piotr Nayar, Barbara Pilat
math.AG