The 10 references in paper O. Zagryadskij A., О. Загрядский А. (2016) “Бертрановские системы и их фазовое пространство // Bertrand systems and their phase space” / spz:neicon:technomag:y:2014:i:2:p:365-386

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Ballesteros-A., EncisoA., HerranzF.J., RagniscoO. Hamiltoniansystemsadmittinga Runge| Lenzvectorand an optimalextensionof Bertrand'stheoremto curvedmanifolds.Commun. Math.Phys., 2009,vol. 290, iss. 3, pp. 1033{1049.DOI:10.1007/s00220-009-0793-5
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KozlovW.W.Dynamicsin spacesof constantcurvature.VestnukMoscovskogouniversiteta. Ser. Mathematika.Mechanika=MoscowUniversityBulletin.Ser. Mathematicsand Mechanics, 1994,no. 2, pp. 28{35.(in Russian)
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SantopreteM. Gravitationaland harmonicoscillatorpotentialson surfacesof revolution.J. Math.Phys., 2008,vol. 49, iss. 4, art no. 042903(16 p.). DOI:10.1063/1.2912325
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ZagryadskiiO.A.,KudryavtsevaE.A.,FedoseevD.A.A generalizationof Bertrand'stheoremto surfacesof revolution.Matematicheskijsbornik, 2012,vol. 203,no. 8. pp. 39{ 78. (Englishversion:Sbornik:Mathematics, 2012,vol. 203,no. 8. pp. 1112{1150.DOI: 10.1070/SM2012v203n08ABEH004257).
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FedoseevD.A.,ZagryadskiiO.A.The ExplicitFormof the BertrandMetric.VestnukMoscovskogouniversiteta.Ser. Mathematika.Mechanika, 2013,vol. 67, no. 5, pp. 46{50.(English version:MoscowUniversityMathematicsBulletin, 2013,vol. 68, iss. 5, pp. 258{262.DOI: 10.3103/S0027132213050094).
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ZagryadskiiO.A.Generalizationof Bertrandtheoremon the Surfaceof Revolutionwith Pseudo-Riemannianmetrics.VestnukMoscovskogouniversiteta.Ser. Mathematika.Mechanika (to be published).
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FomenkoA.T.,KonyaevA.Yu.Algebraand GeometryThroughHamiltonianSystems.In: ZgurovskyV.Z.,SadovnichiyV.A.,eds.Continuousand DistributedSystems.Theoryand Applications. Springer.2014.P . 3{21.(Ser.SolidMechanicsand Its Applications;vol. 211). DOI:10.1007/978-3-319-03146-01
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AleshkinK.R.The topologyof integrablesystemswithincompletefieldsMatematicheskij sbornik, 2014,vol. 205,no. 9. pp. 49{64.(Englishversion:Sbornik:Mathematics, 2014, vol. 205, no. 9, pp. 1264{1278.DOI:10.1070/SM2014v205n09ABEH004417).
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Bolsinov¿.V.,FomenkoA.T.Integriruemyegamil'tonovysistemy[IntegrableHamiltonian Systems]Iszevsk,Udmurtskijuniversitetpubl.,1999.444 p. (in Russian)
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