@article{SM_1992_71_2_a1,
     author = {A. O. Ivanov},
     title = {Calibration forms and new examples of stable and globally minimal surfaces},
     journal = {Sbornik. Mathematics},
     pages = {289--308},
     year = {1992},
     volume = {71},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1992_71_2_a1/}
}