@article{10_4064_am30_1_7,
     author = {Ioannis K. Argyros},
     title = {On the convergence and application
  of {Stirling's} method},
     journal = {Applicationes Mathematicae},
     pages = {109--119},
     year = {2003},
     volume = {30},
     number = {1},
     doi = {10.4064/am30-1-7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am30-1-7/}
}