@article{dekar:1999:wfs,
     title = {Wave function for smooth potential and mass step},
    author = {Dekar, Li\`es  and Chetouani, Lyazid  and Hammann, Th\'eophile F.},
   journal = {Phys. Rev. A},
    volume = {59},
    number = {1},
     pages = {107–112},
      year = {1999},
       doi = {10.1103/PhysRevA.59.107},
 publisher = {American Physical Society}}