| article html file updated | 8 February 2020 01:42 CET | Update | https://www.mdpi.com/2073-4360/9/3/108 |
| article html file updated | 23 September 2019 21:08 CEST | Update | - |
| article html file updated | 4 May 2019 06:12 CEST | Update | - |
| article html file updated | 20 March 2019 06:22 CET | Update | - |
| article html file updated | 29 March 2017 05:50 CEST | Update | - |
| article html file updated | 19 March 2017 05:40 CET | Original file | - |
| article xml uploaded. | 19 March 2017 05:39 CET | Original file | https://www.mdpi.com/2073-4360/9/3/108/xml |
| article pdf uploaded. | 19 March 2017 05:39 CET | Updated version of record | https://www.mdpi.com/2073-4360/9/3/108/pdf |
| article pdf uploaded. | 17 March 2017 12:53 CET | Version of Record | https://www.mdpi.com/2073-4360/9/3/108/pdf-vor |
