| article html file updated | 15 August 2026 08:06 CEST | Update | https://www.mdpi.com/2077-0375/8/4/88 |
| article html file updated | 10 February 2020 13:03 CET | Update | N/A |
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| article html file updated | 27 September 2018 11:27 CEST | Original file | N/A |
| article pdf uploaded. | 27 September 2018 11:26 CEST | Version of Record | https://www.mdpi.com/2077-0375/8/4/88/pdf |
| article xml uploaded. | 27 September 2018 11:26 CEST | Update | https://www.mdpi.com/2077-0375/8/4/88/xml |
| article xml file uploaded | 27 September 2018 11:26 CEST | Original file | N/A |
