@article{10_4064_aa150_4_1,
     author = {Grzegorz Banaszak and Piotr Kraso\'n},
     title = {On arithmetic in {Mordell{\textendash}Weil} groups},
     journal = {Acta Arithmetica},
     pages = {315--337},
     publisher = {mathdoc},
     volume = {150},
     number = {4},
     year = {2011},
     doi = {10.4064/aa150-4-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa150-4-1/}
}