@article{AFM_1992_17_1_a11,
     author = {A.G. Miamee and H. Niemi},
     title = {On the angle for stationary random fields},
     journal = {Annales Fennici Mathematici},
     pages = {93--103},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {1992},
     doi = {10.5186/aasfm.1992.1712},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1992.1712/}
}