SpringerLink (Online service), Goncharov, S. S., Zakharyaschev, M., & Gabbay, D. M. (2007). Mathematical problems from applied logic II: Logics for the XXIst century. Springer Science+Business Media, LLC.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpringerLink (Online service), Sergei S. Goncharov, Michael Zakharyaschev, और Dov M. Gabbay. Mathematical Problems from Applied Logic II: Logics for the XXIst Century. New York, NY: Springer Science+Business Media, LLC, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpringerLink (Online service), et al. Mathematical Problems from Applied Logic II: Logics for the XXIst Century. Springer Science+Business Media, LLC, 2007.
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