no. 1
The nonrelativistic limit of the nonlinear Dirac equation
Annales de l'I.H.P. Analyse non linéaire, Tome 9 (1992) no. 1, pp. 3-12. 
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     author = {Najman, B.},
     title = {The nonrelativistic limit of the nonlinear {Dirac} equation},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {3--12},
     publisher = {Gauthier-Villars},
     volume = {9},
     number = {1},
     year = {1992},
     mrnumber = {1151464},
     zbl = {0746.35036},
     language = {en},
     url = {http://www.numdam.org/item/AIHPC_1992__9_1_3_0/}
}
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Najman, B. The nonrelativistic limit of the nonlinear Dirac equation. Annales de l'I.H.P. Analyse non linéaire, Tome 9 (1992) no. 1, pp. 3-12. http://www.numdam.org/item/AIHPC_1992__9_1_3_0/

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