The following list provides a description of the changes made to the publication since the original version was printed.

- 1. Page 13, line 6 of the abstract paragraph. Original text: “linear functionals of $\lambda _{n}(\cdot )$ is shown”. This should be “linear functionals of $\lambda _{n}$ is shown”.
- 2. Page 14, line 9 from the bottom. It should be “$\tilde{q}(Y_{i},\Delta _{i},X_{i};\lambda ,\beta )$” instead of “$q(Y_{i},\Delta _{i},X_{i};\lambda ,\beta )$”.
- 3. Page 15, line 2 from the bottom. “$\varLambda (t|X;\lambda _{0},\beta _{0})$” should be changed to “$\lambda (t|X;\lambda _{0},\beta _{0})$”.
- 4. Page 16, line 4 in “Main results” sections. “$p(u,x))$” is changed to “$p(u,x)$”.
- 5. Page 19, first line of “Proof of Theorem 5”. “$\tilde{q}(Y_{i},\Delta _{i},W_{i};\lambda ,\beta )$” is changed to “$q(Y_{i},\Delta _{i},W_{i};\lambda ,\beta )$”.
- 6. Page 28, formula (5.7). “
*E*” is changed to “**E**”. - 7. Page 16, lines 9 and 10 from the bottom; page 19, first line of “Proof of Theorem 5”; page 21, formula (4.6) and line 6 from the bottom; page 22, line 2 from the top and line 9 from the bottom; page 23, line 3, 7, 8 from the top and the last line; page 24, lines 10 and 11 from the top; page 25, line 10 from the bottom; page 27, lines 17 and 18 from the top. Everywhere “$(Y_{i},\Delta _{i},W_{i},\beta _{0},\lambda _{0})$” is changed to “$(Y_{i},\Delta _{i},W_{i};\beta _{0},\lambda _{0})$” and “$(Y_{i},\Delta _{i},X_{i},\beta _{0},\lambda _{0})$” to “$(Y_{i},\Delta _{i},X_{i};\beta _{0},\lambda _{0})$”.