| article html file updated | 8 February 2020 01:54 CET | Update | https://www.mdpi.com/2304-6740/5/1/17 |
| article html file updated | 23 September 2019 22:22 CEST | Update | - |
| article html file updated | 4 May 2019 05:44 CEST | Update | - |
| article html file updated | 30 March 2017 03:32 CEST | Update | - |
| article html file updated | 27 March 2017 05:20 CEST | Update | - |
| article html file updated | 24 March 2017 06:49 CET | Update | - |
| article html file updated | 22 March 2017 14:23 CET | Original file | - |
| article xml uploaded. | 22 March 2017 14:21 CET | Original file | https://www.mdpi.com/2304-6740/5/1/17/xml |
| article pdf uploaded. | 22 March 2017 14:21 CET | Updated version of record | https://www.mdpi.com/2304-6740/5/1/17/pdf |
| article pdf uploaded. | 21 March 2017 12:02 CET | Version of Record | https://www.mdpi.com/2304-6740/5/1/17/pdf-vor |
