| article html file updated | 7 February 2020 22:54 CET | Update | https://www.mdpi.com/2073-4425/8/2/61 |
| article html file updated | 23 September 2019 05:14 CEST | Update | N/A |
| article html file updated | 4 May 2019 12:14 CEST | Update | N/A |
| article html file updated | 2 March 2017 10:42 CET | Update | N/A |
| article html file updated | 8 February 2017 12:43 CET | Original file | N/A |
| article xml uploaded. | 8 February 2017 12:42 CET | Original file | https://www.mdpi.com/2073-4425/8/2/61/xml |
| article pdf uploaded. | 8 February 2017 12:42 CET | Version of Record | https://www.mdpi.com/2073-4425/8/2/61/pdf |
