Eiter, T., Gottlob, G., & Gurevich, Y. (1998). Existential Second−Order Logic over Strings.
Lua i Stíl Chicago (17ú heag.)Eiter, T., G. Gottlob, agus Y. Gurevich. Existential Second−Order Logic over Strings. 1998.
Lua MLA (9ú heag.)Eiter, T., et al. Existential Second−Order Logic over Strings. 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.