@article{VM_2013_15_1_a2,
     author = {Shunsuke Nakamura and Ryo Hanafusa and Wataru Ogasa and Takeru Kitagawa and Ryohei Miyadera},
     title = {Chocolate games that satisfy the inequality $y\leq \lfloor \frac{z}{k} \rfloor$ for $k=1,2$ and {Grundy} numbers},
     journal = {Visual Mathematics},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VM_2013_15_1_a2/}
}