| article html file updated | 8 February 2020 06:18 CET | Update | https://www.mdpi.com/2306-5354/4/2/45 |
| article html file updated | 24 September 2019 22:14 CEST | Update | - |
| article html file updated | 3 May 2019 21:11 CEST | Update | - |
| article html file updated | 28 June 2017 12:38 CEST | Update | - |
| article html file updated | 22 May 2017 05:01 CEST | Update | - |
| article html file updated | 19 May 2017 13:22 CEST | Original file | - |
| article xml uploaded. | 19 May 2017 13:20 CEST | Update | https://www.mdpi.com/2306-5354/4/2/45/xml |
| article pdf uploaded. | 19 May 2017 13:20 CEST | Version of Record | https://www.mdpi.com/2306-5354/4/2/45/pdf |
