| article html file updated | 10 February 2020 02:59 CET | Update | https://www.mdpi.com/2079-9721/6/3/68 |
| article html file updated | 5 October 2019 23:52 CEST | Update | N/A |
| article html file updated | 29 April 2019 23:11 CEST | Update | N/A |
| article html file updated | 15 April 2019 18:20 CEST | Update | N/A |
| article html file updated | 31 March 2019 00:15 CET | Update | N/A |
| article html file updated | 26 September 2018 09:27 CEST | Update | N/A |
| article html file updated | 2 August 2018 16:38 CEST | Update | N/A |
| article html file updated | 27 July 2018 08:01 CEST | Update | N/A |
| article pdf uploaded. | 27 July 2018 08:00 CEST | Updated version of record | https://www.mdpi.com/2079-9721/6/3/68/pdf |
| article xml uploaded. | 27 July 2018 08:00 CEST | Update | https://www.mdpi.com/2079-9721/6/3/68/xml |
| article xml file uploaded | 27 July 2018 08:00 CEST | Update | N/A |
| article html file updated | 25 July 2018 15:52 CEST | Original file | N/A |
| article pdf uploaded. | 25 July 2018 15:50 CEST | Version of Record | https://www.mdpi.com/2079-9721/6/3/68/pdf-vor |
| article xml file uploaded | 25 July 2018 15:50 CEST | Original file | N/A |