| article html file updated | 12 February 2020 03:26 CET | Update | https://www.mdpi.com/2073-4409/8/4/321 |
| article html file updated | 17 October 2019 20:37 CEST | Update | N/A |
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| article html file updated | 19 April 2019 12:26 CEST | Update | N/A |
| article html file updated | 19 April 2019 12:18 CEST | Original file | N/A |
| article pdf uploaded. | 19 April 2019 12:18 CEST | Updated version of record | https://www.mdpi.com/2073-4409/8/4/321/pdf |
| article xml uploaded. | 19 April 2019 12:18 CEST | Update | https://www.mdpi.com/2073-4409/8/4/321/xml |
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| article pdf uploaded. | 19 April 2019 12:17 CEST | Updated version of record | N/A |
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| article pdf uploaded. | 11 April 2019 08:32 CEST | Updated version of record | N/A |
| article xml file uploaded | 6 April 2019 08:45 CEST | Original file | N/A |
