Randal L. Schwartz, Tom Phoenix. Learning Pearl - making easy and hard things possible (3. ed.). O Reilly, 2001.
@book{0004907, title = {Learning Pearl - making easy and hard things possible (3. ed.)}, author = {Randal L. Schwartz and Tom Phoenix}, year = {2001}, researchr = {https://researchr.org/publication/0004907}, cites = {0}, citedby = {0}, publisher = {O Reilly}, isbn = {978-0-596-00132-2}, }