| article html file updated | 8 February 2020 00:32 CET | Update | https://www.mdpi.com/1660-3397/15/3/61 |
| article html file updated | 23 September 2019 14:26 CEST | Update | - |
| article html file updated | 4 May 2019 08:48 CEST | Update | - |
| article html file updated | 27 March 2017 11:24 CEST | Update | - |
| article html file updated | 1 March 2017 11:33 CET | Original file | - |
| article xml uploaded. | 1 March 2017 11:32 CET | Original file | https://www.mdpi.com/1660-3397/15/3/61/xml |
| article pdf uploaded. | 1 March 2017 11:32 CET | Version of Record | https://www.mdpi.com/1660-3397/15/3/61/pdf |
