@article{10_14708_ma_v42i1_475,
     author = {Kurt Helmes and Torsten Templin},
     title = {Optimal timing of partial outsourcing decisions},
     journal = {Mathematica Applicanda},
     pages = { 1--37},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {2014},
     doi = {10.14708/ma.v42i1.475},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v42i1.475/}
}