The number corresponds to the first four digits of the series' ISSN ( 2223-439X ). On the OECD iLibrary and official OECD portal, this collection includes over 2,200 research resources. Key Details of the Series
: Explores policy frameworks for e-scooters and shared bikes (March 2021).
: International Transport Forum Discussion Papers.
: Analyzes how cellular and smart card data can improve travel behavior analysis (January 2021).
The phrase "" appears to refer to the International Transport Forum (ITF) Discussion Papers published by the OECD .
A Field Collection of Indigenous Grapevines as a Valuable ... - MDPI
If you were looking for a different academic journal or a specific paper with "2223" in the title, such as a study or a paper from the MDPI Plants journal (where many IDs start with 2223), please let me know.
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