| article html file updated | 12 February 2020 07:40 CET | Update | https://www.mdpi.com/2079-9276/8/2/81 |
| article html file updated | 18 October 2019 23:35 CEST | Update | N/A |
| article html file updated | 5 July 2019 18:29 CEST | Update | N/A |
| article html file updated | 13 May 2019 14:00 CEST | Original file | N/A |
| article pdf uploaded. | 13 May 2019 13:58 CEST | Updated version of record | https://www.mdpi.com/2079-9276/8/2/81/pdf |
| article xml uploaded. | 13 May 2019 13:58 CEST | Update | https://www.mdpi.com/2079-9276/8/2/81/xml |
| article xml file uploaded | 13 May 2019 13:58 CEST | Update | N/A |
| article pdf uploaded. | 25 April 2019 08:54 CEST | Version of Record | https://www.mdpi.com/2079-9276/8/2/81/pdf-vor |
| article xml file uploaded | 25 April 2019 08:54 CEST | Original file | N/A |
