| article html file updated | 12 February 2020 06:47 CET | Update | https://www.mdpi.com/2311-5521/4/2/77 |
| article html file updated | 18 October 2019 17:57 CEST | Update | N/A |
| article html file updated | 5 July 2019 06:38 CEST | Update | N/A |
| article html file updated | 8 May 2019 14:45 CEST | Original file | N/A |
| article pdf uploaded. | 8 May 2019 12:20 CEST | Updated version of record | https://www.mdpi.com/2311-5521/4/2/77/pdf |
| article xml uploaded. | 8 May 2019 12:20 CEST | Update | https://www.mdpi.com/2311-5521/4/2/77/xml |
| article xml file uploaded | 8 May 2019 12:20 CEST | Update | N/A |
| article pdf uploaded. | 21 April 2019 05:57 CEST | Version of Record | https://www.mdpi.com/2311-5521/4/2/77/pdf-vor |
| article xml file uploaded | 21 April 2019 05:57 CEST | Original file | N/A |
