| article html file updated | 8 February 2020 03:03 CET | Update | https://www.mdpi.com/2305-6320/4/2/18 |
| article html file updated | 24 September 2019 04:51 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:15 CEST | Update | N/A |
| article html file updated | 7 April 2017 08:37 CEST | Original file | N/A |
| article xml uploaded. | 7 April 2017 08:36 CEST | Original file | https://www.mdpi.com/2305-6320/4/2/18/xml |
| article pdf uploaded. | 7 April 2017 08:36 CEST | Version of Record | https://www.mdpi.com/2305-6320/4/2/18/pdf |
