@inbook {Mosquera_Perez98d, title = {The Simultaneous Strict Positive Real Problem: Similarities with the Simultaneous Stability Problem and Applications in Adaptive Recursive Algorithms}, booktitle = {Mathematics in Signal Processing}, year = {1998}, pages = {139-148}, publisher = {Oxford University Press}, organization = {Oxford University Press}, keywords = {robust, SPR}, author = {C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez}, editor = {J.G. McWhirter and I.K. Proudler} }