@article{SIGMA_2013_9_a34,
     author = {Yoko Shigyo},
     title = {On {Addition} {Formulae} of {KP,} {mKP} and {BKP} {Hierarchies}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2013},
     volume = {9},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2013_9_a34/}
}