| article html file updated | 7 February 2020 07:47 CET | Update | https://www.mdpi.com/1996-1073/9/5/310 |
| article html file updated | 5 May 2019 17:36 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:57 CET | Update | N/A |
| article html file updated | 26 May 2016 12:20 CEST | Update | N/A |
| article html file updated | 26 April 2016 09:45 CEST | Original file | N/A |
| article xml uploaded. | 26 April 2016 09:42 CEST | Original file | https://www.mdpi.com/1996-1073/9/5/310/xml |
| article pdf uploaded. | 26 April 2016 09:42 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/5/310/pdf |
