Includes Ecosystem whitepaper and technical whitepaper etc.
Check out monthly reports under https://github.com/dimensionofficial/Documentation-Report/tree/master/Project%20Report
Latest quarterly reports refer to https://github.com/dimensionofficial/Documentation-Report/blob/master/Dimension_progress_report_2020Q1.pdf
All related documents can be found at https://dimensionchain.io/documents.html