J. Logic Comput., Vol. 7, No. 4. (1997), pp. 501-522.
Math. Scand., Vol. 94, No. 1. (2004), pp. 13-45.
J. Symbolic Logic, Vol. 37 (1972), pp. 466-482.
Theoret. Comput. Sci., Vol. 327, No. 1-2. (2004), pp. 175-195.
Math. Japon., Vol. 52, No. 2. (2000), pp. 197-213.
(9 Sep 2005)
Order, Vol. 7, No. 3. (1990), pp. 295-314.
Trans. Amer. Math. Soc., Vol. 358, No. 2. (2006), pp. 573-590 (electronic).
Theory Appl. Categ., Vol. 14 (2005), pp. No. 1, 1-45 (electronic).
Studia Logica, Vol. 55, No. 2. (1995), pp. 301-317.
Mathematica Slovaca, Vol. 57, No. 4. (2007), pp. 321-332.
Log. J. IGPL, Vol. 8, No. 6. (2000), pp. 719-731.
Vol. 3929 (2006), pp. 17-32.
Studia Logica, Vol. 52, No. 4. (1993), pp. 595-613.
Fund. Math., Vol. 49 (1960/1961), pp. 35-92.
Ann. Pure Appl. Logic, Vol. 137, No. 1-3. (2006), pp. 30-61.
Repr. Theory Appl. Categ., No. 15. (2006), pp. 1-13 (electronic).
Vol. 3929 (2006), pp. 212-224.
Formal Concept Analysis (2007), pp. 51-65.
Arch. Math. Logic, Vol. 39, No. 8. (2000), pp. 581-598.
Vol. 2142 (2001), pp. 292-307.
(2006), pp. 83-104.
J. Symbolic Logic, Vol. 27 (1962), pp. 259-316.
Vol. 165 (1999), pp. 215-272.
Repr. Theory Appl. Categ., No. 16. (2006), pp. 1-16 (electronic).
Log. J. IGPL, Vol. 6, No. 5. (1998), pp. 669-694.
J. Pure Appl. Algebra, Vol. 49, No. 1-2. (1987), pp. 11-32.
Vol. 2 (1998), pp. 207-254.
Formal Concept Analysis (2006), pp. 80-88.
J. Symbolic Logic, Vol. 27 (1962), pp. 383-390.
Math. Structures Comput. Sci., Vol. 1, No. 1. (1991), pp. 49-67.
Vol. 111 (2000), pp. 167-194.
(2001), pp. 133-247.
Arch. Math. (Brno), Vol. 29, No. 3-4. (1993), pp. 153-160.
Repr. Theory Appl. Categ., No. 8. (2005), pp. 1-24 (electronic).
Bull. Amer. Math. Soc. (N.S.), Vol. 8, No. 1. (1983), pp. 41-53.
Australas. J. Log., Vol. 1 (2003), pp. 28-42 (electronic).
J. Philos. Logic, Vol. 29, No. 4. (2000), pp. 409-424.
(1997)
Comment. Math. Univ. Carolin., Vol. 38, No. 3. (1997), pp. 513-536.
J. Philos. Logic, Vol. 29, No. 4. (2000), pp. 425-431.
Acta Applicandae Mathematicae: An International Survey Journal on Applying Mathematics and Mathematical Applications, Vol. 2, No. 1. (1 March 1984), pp. 1-19.
Amer. J. Math., Vol. 74 (1952), pp. 127-162.
Notre Dame J. Formal Logic, Vol. 16 (1975), pp. 305-328.
Formal Concept Analysis (2005), pp. 81-100.
Proc. Amer. Math. Soc., Vol. 91, No. 3. (1984), pp. 436-443.
British J. Philos. Sci., Vol. 37, No. 1. (1986), pp. 83-99.
Ann. Pure Appl. Logic, Vol. 96, No. 1-3. (1999), pp. 335-342.
Theoria, Vol. 63, No. 3. (1997), pp. 168-181.
Philos. Math. (3), Vol. 13, No. 1. (2005), pp. 1-43.