| article html file updated | 7 February 2020 16:05 CET | Update | https://www.mdpi.com/2306-5354/3/4/25 |
| article html file updated | 22 September 2019 02:24 CEST | Update | N/A |
| article html file updated | 5 May 2019 02:08 CEST | Update | N/A |
| article html file updated | 29 December 2016 06:07 CET | Update | N/A |
| article html file updated | 9 October 2016 12:23 CEST | Original file | N/A |
| article xml uploaded. | 9 October 2016 12:21 CEST | Original file | https://www.mdpi.com/2306-5354/3/4/25/xml |
| article pdf uploaded. | 9 October 2016 12:21 CEST | Version of Record | https://www.mdpi.com/2306-5354/3/4/25/pdf |
