@article {MR3871555,
	title = {Discriminant circle bundles over local models of Strebel graphs and Boutroux curves},
	journal = {Teoret. Mat. Fiz.},
	volume = {197},
	number = {2},
	year = {2018},
	pages = {163{\textendash}207},
	issn = {0564-6162},
	doi = {10.4213/tmf9513},
	url = {https://doi.org/10.4213/tmf9513},
	author = {Marco Bertola and Korotkin, D. A.}
}
