@article{PS_2020__24_1_454_0, author = {Avram, Florin and Grahovac, Danijel and Vardar-Acar, Ceren}, title = {The {\protect\emph{W},} {\protect\emph{Z}} scale functions kit for first passage problems of spectrally negative {L\'evy} processes, and applications to control problems}, journal = {ESAIM: Probability and Statistics}, pages = {454--525}, publisher = {EDP-Sciences}, volume = {24}, year = {2020}, doi = {10.1051/ps/2019022}, mrnumber = {4158667}, zbl = {1461.60028}, language = {en}, url = {http://www.numdam.org/articles/10.1051/ps/2019022/} }