Spoon is a Java program processor that fully supports Java 5 and 6. It provides a complete and fine-grained Java metamodel where any program element (classes, methods, fields, statements, expressions...) can be accessed both for reading and modification.
K. Becker, G. Stumme, R. Wille, U. Wille, and M. Zickwolff. Knowledge Engineering and Knowledge Management. Methods, Models, and Tools., volume 1937 of LNAI, page 352-365. Heidelberg, Springer, (2000)
G. Stumme. Conceptual Structures: Integration and Interfaces, volume 2393 of LNAI, page 2-19. Heidelberg, Springer, (2002)Invited Talk, summary of stumme03offtonew.
R. Cole, and G. Stumme. Conceptual Structures: Logical, Linguistic, and Computational Issues. Proc. ICCS '00, volume 1867 of LNAI, page 438-452. Heidelberg, Springer, (2000)Part of cole03document.
N. Spangenberg, K. Wolff, and S. Lübben. Psychoanalytic research by means of formal concept analysis, Special des Sigmund--Freud--Instituts, Lit Verlag, Münster, (to appear)