@Article{ FleischerK18rairo, author = "Fleischer, Lukas and Kufleitner, Manfred", title = "The complexity of weakly recognizing morphisms", doi = "10.1051/ita/2018006", url = "https://doi.org/10.1051/ita/2018006", journal = "RAIRO-Theor. Inf. Appl.", year = "2018" }