| article html file updated | 15 August 2026 22:20 CEST | Update | https://www.mdpi.com/2304-8158/8/4/138 |
| article html file updated | 12 February 2020 07:05 CET | Update | N/A |
| article html file updated | 18 October 2019 19:41 CEST | Update | N/A |
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| article html file updated | 23 April 2019 06:02 CEST | Original file | N/A |
| article pdf uploaded. | 23 April 2019 06:01 CEST | Version of Record | https://www.mdpi.com/2304-8158/8/4/138/pdf |
| article xml uploaded. | 23 April 2019 06:01 CEST | Update | https://www.mdpi.com/2304-8158/8/4/138/xml |
| article xml file uploaded | 23 April 2019 06:01 CEST | Original file | N/A |
