@Article{275269,
     author = "Adam Urbanek",
     title = "Biological sciences : present state and trends of development ",
     year =  1985 (wyd. 1986-1987),
     volume =  4,
     number =  1,
     journal =  Acta Academiae Scientiarum Polonae,
     pages =  s. 13-28,
    }