| article html file updated | 8 February 2020 06:57 CET | Update | https://www.mdpi.com/2073-4360/9/6/196 |
| article html file updated | 3 May 2019 19:58 CEST | Update | N/A |
| article html file updated | 18 March 2019 05:51 CET | Update | N/A |
| article html file updated | 28 June 2017 14:17 CEST | Update | N/A |
| article html file updated | 31 May 2017 11:05 CEST | Original file | N/A |
| article xml uploaded. | 31 May 2017 11:04 CEST | Original file | https://www.mdpi.com/2073-4360/9/6/196/xml |
| article pdf uploaded. | 31 May 2017 11:04 CEST | Updated version of record | https://www.mdpi.com/2073-4360/9/6/196/pdf |
| article pdf uploaded. | 29 May 2017 10:00 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/6/196/pdf-vor |
