@article {MR3342766,
	title = {The partition function of the extended $r$-reduced Kadomtsev-Petviashvili hierarchy},
	journal = {J. Phys. A},
	volume = {48},
	number = {19},
	year = {2015},
	pages = {195205, 20},
	issn = {1751-8113},
	doi = {10.1088/1751-8113/48/19/195205},
	url = {http://dx.doi.org/10.1088/1751-8113/48/19/195205},
	author = {Marco Bertola and Di Yang}
}
