@article{SMJ2_2023_49_1_3_a5,
     author = {Ivanov, Milen and Zlateva, Nadia},
     title = {Hadamard inverse function theorem proved by variational analysis},
     journal = {Serdica Mathematical Journal},
     pages = {97--106},
     publisher = {mathdoc},
     volume = {49},
     number = {1{\textendash}3},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2023_49_1_3_a5/}
}