| article html file updated | 7 February 2020 14:17 CET | Update | https://www.mdpi.com/1999-5903/8/3/44 |
| article html file updated | 5 May 2019 05:22 CEST | Update | N/A |
| article html file updated | 27 March 2019 15:42 CET | Update | N/A |
| article html file updated | 1 September 2016 11:47 CEST | Original file | N/A |
| article xml uploaded. | 1 September 2016 11:46 CEST | Update | https://www.mdpi.com/1999-5903/8/3/44/xml |
| article xml uploaded. | 1 September 2016 11:46 CEST | Original file | N/A |
| article pdf uploaded. | 1 September 2016 11:46 CEST | Version of Record | https://www.mdpi.com/1999-5903/8/3/44/pdf |
