@article{10_4064_aa101_1_3,
     author = {Zhi-Ying Wen and Jia-Yan Yao},
     title = {Transcendence, automata theory and gamma functions
for polynomial rings},
     journal = {Acta Arithmetica},
     pages = {39--51},
     year = {2002},
     volume = {101},
     number = {1},
     doi = {10.4064/aa101-1-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa101-1-3/}
}