G. Felder, C. Wieczerkowski, "Conformal blocks on elliptic curves and the Knizhnik--Zamolodchikov--Bernard equations", arxiv:hep-th/9411004
N. Berkovits, C. Vafa, E. Witten, "Conformal Field Theory of AdS Background with Ramond-Ramond Flux", arxiv:hep-th/9902098
M. Zirnbauer, "The integer quantum Hall plateau transition is a current algebra after all", arXiv:1805.12555
N. Robertson, J. Jacobsen, H. Saleur, "Conformally invariant boundary conditions in the antiferromagnetic Potts model and the sigma model", arXiv:1906.07565
Novikov, S. P. (1981). "Multivalued functions and functionals. An analogue of the Morse theory". Sov. Math., Dokl. 24: 222–226.; Novikov, S. P. (1982). "The Hamiltonian formalism and a many-valued analogue of Morse theory". Russian Mathematical Surveys. 37 (5): 1–9. Bibcode:1982RuMaS..37....1N. doi:10.1070/RM1982v037n05ABEH004020. S2CID250867649.
Novikov, S. P. (1981). "Multivalued functions and functionals. An analogue of the Morse theory". Sov. Math., Dokl. 24: 222–226.; Novikov, S. P. (1982). "The Hamiltonian formalism and a many-valued analogue of Morse theory". Russian Mathematical Surveys. 37 (5): 1–9. Bibcode:1982RuMaS..37....1N. doi:10.1070/RM1982v037n05ABEH004020. S2CID250867649.
Novikov, S. P. (1981). "Multivalued functions and functionals. An analogue of the Morse theory". Sov. Math., Dokl. 24: 222–226.; Novikov, S. P. (1982). "The Hamiltonian formalism and a many-valued analogue of Morse theory". Russian Mathematical Surveys. 37 (5): 1–9. Bibcode:1982RuMaS..37....1N. doi:10.1070/RM1982v037n05ABEH004020. S2CID250867649.