| Date | Description |
|---|---|
| 2018-02-18 | update person_title Ratko Vidakovic: Founder, Author & Principal Consultant; Founder => Principal; Founder |
| 2017-12-07 | update person_description Ratko Vidakovic => Ratko Vidakovic |
| 2017-04-28 | update person_title Ratko Vidakovic: Founder & Author => Founder, Author & Principal Consultant |