@Article{118347,
     author = "Beata Nytko-Wołoszczuk",
     title = "The condition and tendencies in demographic structure transformations in small towns of Opole district ",
     year =  2006,
     volume =  ,
     number =  6,
     journal =  Bulletin of Geography. Socio-Economic Series,
     pages =  s. 119-130,
    }