| article html file updated | 7 February 2020 20:47 CET | Update | https://www.mdpi.com/1996-1073/10/1/47 |
| article html file updated | 22 September 2019 17:50 CEST | Update | N/A |
| article html file updated | 4 May 2019 16:49 CEST | Update | N/A |
| article html file updated | 7 February 2017 09:42 CET | Update | N/A |
| article html file updated | 4 January 2017 11:06 CET | Original file | N/A |
| article xml uploaded. | 4 January 2017 11:04 CET | Update | https://www.mdpi.com/1996-1073/10/1/47/xml |
| article pdf uploaded. | 4 January 2017 11:04 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/47/pdf |
