Shortened text of the section. Full text in ukrainian version
The dependence of the texts we have considered can be represented by the following stemma:
Stemma chronicle 1355 – 1374 years
Distribution of episodes Rogozhsky chronicler by years
Conclusion: the source value for message about Blue Water has only Rogozhsky chronicler, which got this message, supposedly from proto-Tver chronicles, roughly, 1375 – 1380 years.