| article html file updated | 8 February 2020 00:43 CET | Update | https://www.mdpi.com/1996-1073/10/3/301 |
| article html file updated | 23 September 2019 15:29 CEST | Update | - |
| article html file updated | 4 May 2019 08:23 CEST | Update | - |
| article html file updated | 28 March 2017 11:25 CEST | Update | - |
| article html file updated | 8 March 2017 02:17 CET | Original file | - |
| article xml uploaded. | 8 March 2017 02:15 CET | Original file | https://www.mdpi.com/1996-1073/10/3/301/xml |
| article pdf uploaded. | 8 March 2017 02:15 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/3/301/pdf |
| article pdf uploaded. | 3 March 2017 12:07 CET | Version of Record | https://www.mdpi.com/1996-1073/10/3/301/pdf-vor |
