@article{iiasa4688,
          volume = {6},
          number = {1},
           title = {Constructions of nonsmooth analysis in numerical methods for solving Hamilton-Jacobi equations},
       publisher = {Nova Science Publishers},
            year = {1996},
           pages = {27--43},
         journal = {Nova Journal of Mathematics, Game Theory, and Algebra},
             url = {https://pure.iiasa.ac.at/id/eprint/4688/},
            issn = {1060-9881},
          author = {Grigoreva, S. V. and Tarasyev, A. M. and Uspenskii, A. A. and Ushakov, V. N.}
}