@article{EJDE_2012__2012__a84,
     author = {Ismailov, Zameddin I. and Mert, Rukiye Ozturk},
     title = {Normal extensions of a singular multipoint differential operator of first order},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2012},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a84/}
}