1. D. Alpay, A. Dijksma, J. van der Ploeg and H. de Snoo, Holomorphic operators between Krein spaces and the number of squares of associated kernels, To appear in Operator Theory: Advances and Applications 59, 11–28, Birkhäuser Verlag, 1992.
2. D. Alpay, A. Dijksma and H. de Snoo, Reproducing kernel Pontryagin spaces, operator colligations and operator models, Preprint, 1992.
3. D. Alpay and H. Dym, On a new class of reproducing kernel spaces and a new generalization of the Iohvidov’s laws, To appear in Linear Algebra and Applications.
4. D. Alpay and H. Dym, On a new class of structural reproducing kernel spaces, To appear in J. Func. Anal. Appl. 108 (1992).
5. D. Alpay and H. Dym, Realization and factorization of a family of mero-morphic functions, In preparation.