@article{10_4064_am31_3_2,
     author = {Marek Ka{\l}uszka and Alina Kondratiuk-Janyska},
     title = {On risk minimizing strategies for
 default-free bond portfolio immunization},
     journal = {Applicationes Mathematicae},
     pages = {259--272},
     publisher = {mathdoc},
     volume = {31},
     number = {3},
     year = {2004},
     doi = {10.4064/am31-3-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am31-3-2/}
}