1. Yu.M. Berezansky, Direct and inverse spectral problems for Jacobi fields, St. Petersburg Math. J. 9 (1998), 1053–1071.
2. Yu.M. Berezansky, Commutative Jacobi fields in Fock space, Integr. Equ. Oper. Theory 30 (1998), 163–190.
3. Yu.M. Berezansky, On the theory of commutative Jacobi fields, Methods Funct. Anal. Topology 4 no. 1 (1998), 1–31.
4. Yu.M. Berezansky, Spectral theory of commutative Jacobi fields: Direct and inverse problems, Fields Inst. Commun. 25 (2000), 211–224.
5. Yu.M. Berezansky, Poisson measure as the spectral measure of Jacobi field, Infin. Dimen. Anal. Quant. Prob. Rel. Top. 3 (2000), 121–139.