Italy Industrial Production m/m - Italy Industrial Production m/m (for more indicators by source code - look at this channel: https://www.mql5.com/en/channels/forecast )
Developing a multi-currency Expert Advisor (Part 21): Preparing for an important experiment and optimizing the code - https://www.mql5.com/en/articles/16373
Self Optimizing Expert Advisors in MQL5 (Part 14): Viewing Data Transformations as Tuning Parameters of Our Feedback Controller - https://www.mql5.com/en/articles/19382