no. 2
Dirac equations with moving nuclei
Annales de l'I.H.P. Physique théorique, Tome 54 (1991) no. 2, pp. 209-221. 
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     author = {Kato, T. and Yajima, K.},
     title = {Dirac equations with moving nuclei},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {209--221},
     publisher = {Gauthier-Villars},
     volume = {54},
     number = {2},
     year = {1991},
     mrnumber = {1110653},
     zbl = {0748.35033},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1991__54_2_209_0/}
}
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Kato, T.; Yajima, K. Dirac equations with moving nuclei. Annales de l'I.H.P. Physique théorique, Tome 54 (1991) no. 2, pp. 209-221. http://www.numdam.org/item/AIHPA_1991__54_2_209_0/

[1] M. Arai and O. Yamada, The Essential Self-Adjointness and Invariance of the Essential Spectrum of Dirac Operators, Publ. R.I.M.S., Kyoto Univ., Vol. 18, 1982, pp. 973-985. | MR | Zbl

[2] E. Hopf, On Non-Linear Partial Differential Equations, Lecture series of the Symposium on Partial Differential Equations held at UC. Berkeley, 1955, University of Kansas Press.

[3] W. Hunziker, Distorsion Analyticity and Molecular Resonance Curves, Ann. Inst. H. Poincaré, Phys. Théor., Vol. 45, 1986, pp. 339-358. | Numdam | MR | Zbl

[4] T. Kato, Linear Evolution Equations of "Hyperbolic Type", J. Fac. Sci., Univ. Tokyo, Vol. 17, 1970, pp. 241-258. | MR | Zbl

[5] U.-W. Schmincke, Essential Selfadjointness of Dirac Operators with a Strongly Singular Potential, Math. Z., Vol. 126, 1972, pp. 71-81. | MR | Zbl