@article{NSJOM_1999_29_1a_7,
     author = {G. 

 Lingyun},
     title = {Admissible solutions of a system of complex higher-order differential 

 equations},
     journal = {Novi Sad Journal of Mathematics},
     pages = {61-67},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1999},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1999_29_1a_7/}
}