| article html file updated | 8 February 2020 00:56 CET | Update | https://www.mdpi.com/1996-1073/10/3/320 |
| article html file updated | 23 September 2019 16:50 CEST | Update | N/A |
| article html file updated | 4 May 2019 07:52 CEST | Update | N/A |
| article html file updated | 28 March 2017 11:30 CEST | Update | N/A |
| article html file updated | 8 March 2017 02:41 CET | Original file | N/A |
| article xml uploaded. | 8 March 2017 02:39 CET | Original file | https://www.mdpi.com/1996-1073/10/3/320/xml |
| article pdf uploaded. | 8 March 2017 02:39 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/3/320/pdf |
| article pdf uploaded. | 7 March 2017 15:03 CET | Version of Record | https://www.mdpi.com/1996-1073/10/3/320/pdf-vor |
