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[HPT] Z. Hedrlin A. Pultr V. Trnková: Concerning a categorical approach to topological and algebraic categories. Proc. Second Prague Topo. Symp. Akademia, Praha 1966, 176-181. MR 0230784

[HP-1] Z. Hedrlín A. Pultr: On full embeddings of categories of algebras. Illinois J. of Math. 70 (1966), 392-406. DOI 10.1215/ijm/1256054991 | MR 0191858

[HP-2] Z. Hedrlín A. Pultr: On categorical embeddings of topological structures into algebraic. Comment. Math. Univ. Carolinae 7 (1966), 377-400. MR 0202797

[H] Z. Hedrlín: Extensions of structures and full embeddings of categories. Actes Congres Intern. Math. 1970 Tome 1, 319-322. MR 0419554

[HS] Z. Hedrlín J. Sichler: Any boundable binding category contains a proper class of mutually disjoint copies of itself. Alg. Universalis 1 (1971), 97-103. DOI 10.1007/BF02944963 | MR 0285580

[HK] Z. Hedrlín L. Kučera: A universal embedding theorem. - to appear.

[HN] P. Hell J. Nešetřil: Graphs and k-societies. Canad. Math. Bulletin 13 (1970), 375-381. DOI 10.4153/CMB-1970-071-3 | MR 0276124

[K-1] V. Koubek: On categories into which each concrete category can be embedded. Cahiers Topo, et Geo. Diff. XVII (1976), 33-57. MR 0417256 | Zbl 0336.18005

[K-2] V. Koubek: On categories into which each concrete category can be embedded II. Cahiers Topo, et Geo. Diff. XVIII (1971), 249-269. MR 0453837

[K-3] V. Koubek: Large systems of independent objects in concrete categories I. to appear. Zbl 0606.18002

[K-4] V. Koubek: Set functor II - contravariant case. Comment. Math. Univ. Carolinae 14 (1973), 47-59. MR 0318257 | Zbl 0256.18003

[K-5] V. Koubek: Graphs with given subgraph represent all categories. Comment. Math. Univ. Carolinae 18 (1977), 115-127. MR 0457276

[K-6] V. Koubek: Graphs with given subgraph represent all categories II. Comment. Math. Univ. Carolinae 19 (1978), 249-264. MR 0498229

[KP] V. Koubek P. Pták: On limits in the generalized algebraic categories, contravariant case. Acta Univ. Carolinae Math. et Phys. 18 (1977), 43-53. MR 0491874

[K] L. Kučera: Úplná vnoření struktur. (Czech), Thesis, Prague 1973.

[KuP] L. Kučera A. Pultr: On a mechanism of defining morphisms in concrete categories. Cahiers Topo, et Geo. Diff. ХIII (1973), 397-410. MR 0393173

[M] E. Mendelsohn: On a technique for representing semigroups and endomorphism semigroups of graphs with giveh properties. Semigroup Forum 4 (1972), 283 - 294. DOI 10.1007/BF02570800 | MR 0304533

[P-1] A. Pultr: On full embeddings of concrete categories with respect to forgetful functors. Comment. Maht. Univ. Carolinae 9 (1968), 281-305. MR 0240166 | Zbl 0175.29001

[P-2] A. Pultr: Eine Bemerkung über volle Einbettungen von Kategorien von Algebren. Math. Annalen 178 (1968), 78-82. DOI 10.1007/BF01350626 | MR 0230794 | Zbl 0174.30002

[VPH] P. Vopěnka A. Pultr Z. Hedrlín: A rigid relation exists on any set. Comment. Math. Univ. Carolinae 6 (1965), 149-155. MR 0183647