@article{10_4064_ap_27_1_51_54,
     author = {Bang Yen Chen},
     title = {An integral formula for submanifolds and its application},
     journal = {Annales Polonici Mathematici},
     pages = {51--54},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {1972},
     doi = {10.4064/ap-27-1-51-54},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-27-1-51-54/}
}