Block-level fault model-free debug and diagnosis in digital systemsUbar, Raimund-Johannes; Kostin, Sergei; Raik, JaanProceedings of the 12th EUROMICRO Conference on Digital System Design, Architectures, Methods and Tools : Patras, Greece, August 27-29, 20092009 / p. 229-232 https://ieeexplore.ieee.org/document/5350128