| article html file updated | 13 August 2026 04:22 CEST | Update | https://www.mdpi.com/2227-7390/2/3/172 |
| article html file updated | 6 February 2020 12:22 CET | Update | N/A |
| article html file updated | 7 May 2019 08:02 CEST | Update | N/A |
| article html file updated | 22 March 2019 01:15 CET | Update | N/A |
| article html file updated | 21 July 2017 03:48 CEST | Update | N/A |
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| article html file updated | 21 July 2017 03:46 CEST | Original file | N/A |
| article xml uploaded. | 21 July 2017 03:45 CEST | Update | https://www.mdpi.com/2227-7390/2/3/172/xml |
| article pdf uploaded. | 22 September 2014 11:03 CEST | Version of Record | https://www.mdpi.com/2227-7390/2/3/172/pdf |
