2021
https://reflectoring.io/spring-boot-cache/
    https://github.com/thombergs/code-examples/tree/master/spring-boot/cache
2020
https://www.baeldung.com/spring-multiple-cache-managers
2019
https://habr.com/ru/articles/465667/
https://habr.com/ru/post/465667/
2018
https://www.javadevjournal.com/spring/spring-caching/