@article{JTNB_1991__3_1_43_0, author = {Erd\"os, P. and Shallit, J. O.}, title = {New bounds on the length of finite pierce and {Engel} series}, journal = {S\'eminaire de th\'eorie des nombres de Bordeaux}, pages = {43--53}, publisher = {Universit\'e Bordeaux I}, volume = {Ser. 2, 3}, number = {1}, year = {1991}, zbl = {0727.11003}, mrnumber = {1116100}, language = {en}, url = {http://www.numdam.org/item/JTNB_1991__3_1_43_0/} }