| article html file updated | 10 February 2020 17:29 CET | Update | https://www.mdpi.com/2076-0752/7/4/69 |
| article html file updated | 28 April 2019 16:49 CEST | Update | N/A |
| article html file updated | 14 April 2019 11:57 CEST | Update | N/A |
| article html file updated | 1 April 2019 10:37 CEST | Update | N/A |
| article html file updated | 26 December 2018 08:53 CET | Update | N/A |
| article pdf uploaded. | 23 October 2018 13:06 CEST | Version of Record | https://www.mdpi.com/2076-0752/7/4/69/pdf |
| article xml uploaded. | 23 October 2018 13:06 CEST | Update | https://www.mdpi.com/2076-0752/7/4/69/xml |
| article xml file uploaded | 23 October 2018 13:06 CEST | Original file | N/A |
| article html file updated | 23 October 2018 13:06 CEST | Original file | N/A |
