@article{10_4064_ap_47_1_41_50,
     author = {Zbigniew Olszak},
     title = {Normal almost contact metric manifolds of dimension three},
     journal = {Annales Polonici Mathematici},
     pages = {41--50},
     publisher = {mathdoc},
     volume = {47},
     number = {1},
     year = {1986},
     doi = {10.4064/ap-47-1-41-50},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-47-1-41-50/}
}