@incollection{Bahri18, author = {Sidi Mohamed Bahri}, title = {A Formal Perturbation Theory of Carleman Operators}, booktitle = {Perturbation Methods with Applications in Science and Engineering}, publisher = {IntechOpen}, address = {Rijeka}, year = {2018}, editor = {İlkay Bakırtaş}, chapter = {3}, doi = {10.5772/intechopen.79022}, url = {https://doi.org/10.5772/intechopen.79022} }