TY - JOUR T1 - Two sheaf representations of elementary toposes JO - Studies in Logic and the Foundations of Mathematics PY - 1982/01/01 AU - Lambek J AU - Moerdijk I ED - DO - DOI: 10.1016/S0049-237X(09)70132-6 VL - 110 IS - C SP - 275 EP - 295 Y2 - 2024/12/22 ER -