[
[1] Baldassari F., Dwork B.: On second order linear differential equations with algebraic solutions, Am. J. Math. 101, (1979) 42 - 76.
]Search in Google Scholar
[
[2] Beukers F.: Gauss Hypergeometric Function, published in Arithmetic and Geometry Around Hypergeometric Functions. Lecture Notes of a CIMPA Summer School, Galatasaray University, Istanbul, 2005.
]Search in Google Scholar
[
[3] Beukers F., van der Waall A.: Lamé equations with algebraic solutions, J. Differ. Equ. 197, (2004) 125.
]Search in Google Scholar
[
[4] Bouquet J.-C., Briot C. A.: Étude des fonctions d’une variable imaginaire, Journal de l’École Polytechnique, 21, (1856) 85 - 132.
]Search in Google Scholar
[
[5] Bouquet J.-C., Briot C. A.: Recherches sur les propriétés des fonctions définies par des équations différentielles, Journal de l’École Polytechnique, 21, (1856) 133 - 198.
]Search in Google Scholar
[
[6] Chiarellotto B.: On Lamé operators which are pull-backs of hypergeometric ones, Trans. Am. Math. Soc, Volume 347 Number 8, (1995) 2753-2780.
]Search in Google Scholar
[
[7] Decarreau A., Dumont - Lepage, Pascal Maroni M.-C., Robert A., Ronveaux A.: Formes canoniques des équations confluentes de l’équation de Heun, Ann. Soc. Sci. Bruxelles 92, (1978) 53-78.
]Search in Google Scholar
[
[8] Gray J.J.: Fuchs and the Theory of Differential Equations, Bull. Amer. Math. Soc. (N.S.), Volume 10 Number 1, 1-26 (1984).
]Search in Google Scholar
[
[9] Girondo E., Gonzáles - Diez G.: Introduction to Compact Riemann Surfaces and Dessins d’Enfants. Cambridge University Press, London Mathematical Society Student Texts 79 (2012). ISBN 978-0521740227.10.1017/CBO9781139048910
]Search in Google Scholar
[
[10] Grothendieck A.: Esquisee d’un Programme, (1984).
]Search in Google Scholar
[
[11] van Hoeij M., Vidūnas R.: Belyi functions for hyperbolic hypergeometric - to - Heun transformations, Journal of Algebra, volume 441 (2015), 609 - 659.
]Search in Google Scholar
[
[12] Klein C.F.: Ueber lineare Differentialgleichungen, Mathematische Annalen 12, (1877) 167 - 179.10.1007/BF01442656
]Search in Google Scholar
[
[13] Kummer E.K.:Über die hypergeometrische Reihe, Journal für die reine und angewandte Mathematik, XV, (1836), 39-83, 127-172.
]Search in Google Scholar
[
[14] Lando S.K., Zvonkin A.K.: Graphs on Surfaces and their Applications. Springer-Verlag Berlin Heidelberg, Encyclopaedia of Mathematical Sciences 141 (2004). ISBN 978-3-540-38361-1
]Search in Google Scholar
[
[15] Liţcanu R.: Counting Lamé Differential Operators, Rendiconti del Seminario Matematico della Universitá di Padova, 107, (2002) 93 - 116.
]Search in Google Scholar
[
[16] Liţcanu R.: Lamé operators with finite monodromy - a combinatorial approach, J. Differ. Equ., 207, (2004) 93 - 116.
]Search in Google Scholar
[
[17] Liţcanu R.: Proprieétés du degré des morphismes de Belyi, Monatshefte für Mathematik, 142 (2004), 327340.10.1007/s00605-003-0142-2
]Search in Google Scholar
[
[18] Liţcanu R.: Some remarks on a conjecture of Dwork, Riv. Mat. Univ. Parma (7), 3* (2004), 245-252.
]Search in Google Scholar
[
[19] Liţcanu R., Pleşca, I.-C.: Second Order Differential Operators with Algebraic Solutions, to be published.
]Search in Google Scholar
[
[20] Maier R.: The 192 solutions of the Heun equation, Math. Comput. 76, (2007) 811-843.
]Search in Google Scholar
[
[21] Maier R.: On reducing the Heun equation to the hypergeometric equation, J. Differ. Equ., 213, (2005) 171203.
]Search in Google Scholar
[
[22] Poole E.G.C.: Introduction to the Theory of Linear Differential Equations. Oxford at the Clarendon Press (1936).
]Search in Google Scholar
[
[23] Riemann G.F.B.: Beiträge zur Theorie der durch die Gausssche Reihe F (α, β, γ, x) darstellbaren Functionen, Abhandlungen der Kniglichen Gesellschaft der Wissenschaften zu Gttingen, 7, (1857) 67 - 83.
]Search in Google Scholar
[
[24] Riemann G. F. B.: Theorie der Abelschen Functionen, Journal fr die reine und angewandte Mathematik, 54, (1857) 101 - 155.
]Search in Google Scholar
[
[25] Schwarz H.A.: Ueber diejenigen Flle, in welchen die Gaussische hyper-geometrische Reihe eine algebraische Function ihres vierten Elementes darstellt, Journal für die reine und angewandte Mathematik 75, (1857) 292 - 335.
]Search in Google Scholar
[
[26] Leila Schneps (editor): The Grothendieck Theory of Dessins d’Enfants, Cambridge University Press, 1994,10.1017/CBO9780511569302
]Search in Google Scholar
[
[27] Vidūnas R., Filipuk G.: A classification of coverings yielding Heun-to-hypergeometric reductions, Osaka J. Math. Volume 51, Number 4, (2014) 867 - 905.
]Search in Google Scholar
[
[28] Vidūnas R.: Degenerate and dihedral Heun functions with parameters, Hokkaido Math. J., Volume 45, Number 1, (2016) 93-108.
]Search in Google Scholar
[
[29] van der Waall, Alexa: Lamé Equations with Finite Monodromy, PHD Thesis, Utrecht University (2002).
]Search in Google Scholar
