@article {BertolaAdvances,
	title = {Commuting difference operators, spinor bundles and the asymptotics of orthogonal polynomials with respect to varying complex weights},
	journal = {Adv. Math.},
	volume = {220},
	number = {1},
	year = {2009},
	pages = {154{\textendash}218},
	issn = {0001-8708},
	author = {Marco Bertola and Mo, M. Y.}
}
