Meromorphic eigenvalue problem, pole interpretation and many-particle problem for non-linear equations
Séminaire sur les équations non linéaires (Choodnovsky) (1977-1978), Exposé no. 10, 7 p. 
@article{SENL_1977-1978____A11_0,
     author = {Choodnovsky, D. V. and Choodnovsky, G. V.},
     title = {Meromorphic eigenvalue problem, pole interpretation and many-particle problem for non-linear equations},
     journal = {S\'eminaire sur les \'equations non lin\'eaires (Choodnovsky)},
     note = {talk:10},
     pages = {1--7},
     year = {1977-1978},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     language = {en},
     url = {https://www.numdam.org/item/SENL_1977-1978____A11_0/}
}
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Choodnovsky, D. V.; Choodnovsky, G. V. Meromorphic eigenvalue problem, pole interpretation and many-particle problem for non-linear equations. Séminaire sur les équations non linéaires (Choodnovsky) (1977-1978), Exposé no. 10, 7 p.. https://www.numdam.org/item/SENL_1977-1978____A11_0/

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