| article html file updated | 12 February 2020 07:25 CET | Update | https://www.mdpi.com/2227-7102/9/2/88 |
| article html file updated | 18 October 2019 21:51 CEST | Update | N/A |
| article html file updated | 4 July 2019 17:56 CEST | Update | N/A |
| article html file updated | 7 May 2019 05:14 CEST | Original file | N/A |
| article pdf uploaded. | 7 May 2019 05:13 CEST | Updated version of record | https://www.mdpi.com/2227-7102/9/2/88/pdf |
| article xml uploaded. | 7 May 2019 05:13 CEST | Update | https://www.mdpi.com/2227-7102/9/2/88/xml |
| article xml file uploaded | 7 May 2019 05:13 CEST | Update | N/A |
| article pdf uploaded. | 24 April 2019 11:11 CEST | Version of Record | https://www.mdpi.com/2227-7102/9/2/88/pdf-vor |
| article xml file uploaded | 24 April 2019 11:11 CEST | Original file | N/A |
