| article html file updated | 8 February 2020 02:23 CET | Update | https://www.mdpi.com/1996-1073/10/4/444 |
| article html file updated | 24 September 2019 01:00 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:45 CEST | Update | N/A |
| article html file updated | 28 April 2017 05:58 CEST | Update | N/A |
| article html file updated | 28 March 2017 15:31 CEST | Original file | N/A |
| article xml uploaded. | 28 March 2017 15:29 CEST | Original file | https://www.mdpi.com/1996-1073/10/4/444/xml |
| article pdf uploaded. | 28 March 2017 15:29 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/4/444/pdf |
