| article html file updated | 7 February 2020 07:37 CET | Update | https://www.mdpi.com/1999-4915/8/4/113 |
| article html file updated | 5 May 2019 17:55 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:37 CET | Update | N/A |
| article html file updated | 28 April 2016 12:12 CEST | Update | N/A |
| article html file updated | 21 April 2016 15:21 CEST | Original file | N/A |
| article xml uploaded. | 21 April 2016 15:20 CEST | Original file | https://www.mdpi.com/1999-4915/8/4/113/xml |
| article pdf uploaded. | 21 April 2016 15:20 CEST | Version of Record | https://www.mdpi.com/1999-4915/8/4/113/pdf |
