| article html file updated | 8 February 2020 09:09 CET | Update | https://www.mdpi.com/2305-6320/4/3/44 |
| article html file updated | 25 September 2019 13:06 CEST | Update | - |
| article html file updated | 3 May 2019 15:48 CEST | Update | - |
| article html file updated | 30 September 2017 15:39 CEST | Update | - |
| article html file updated | 28 June 2017 15:59 CEST | Update | - |
| article xml uploaded. | 28 June 2017 15:58 CEST | Update | https://www.mdpi.com/2305-6320/4/3/44/xml |
| article pdf uploaded. | 28 June 2017 15:58 CEST | Updated version of record | https://www.mdpi.com/2305-6320/4/3/44/pdf |
| article html file updated | 24 June 2017 13:32 CEST | Original file | - |
| article pdf uploaded. | 24 June 2017 13:31 CEST | Version of Record | https://www.mdpi.com/2305-6320/4/3/44/pdf-vor |
