@article{CLTM_2006_2006_1_a15,
     author = {Astala, Kari and P\"aiv\"arinta, Lassi},
     title = {Ecuaci\'on integral en la frontera para el problema inverso de conductividad de {Calder\'on.}},
     journal = {Collectanea mathematica},
     pages = {127-139},
     publisher = {mathdoc},
     volume = {57},
     number = {Extra},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_2006_2006_1_a15/}
}