@article{10_4064_fm_43_1_50_68,
     author = {Andrzej Ehrenfeucht and Andrzej Mostowski},
     title = {Models of axiomatic theories admitting automorphisms},
     journal = {Fundamenta Mathematicae},
     pages = {50--68},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {1956},
     doi = {10.4064/fm-43-1-50-68},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-43-1-50-68/}
}