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"Prefix classes of krom formulae with identity."
Stål O. Aanderaa, Egon Börger, Yuri Gurevich (1980)
- Stål O. Aanderaa, Egon Börger, Yuri Gurevich:
Prefix classes of krom formulae with identity. Arch. Math. Log. 22(1-2): 43-49 (1980)
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