| article html file updated | 8 February 2020 05:04 CET | Update | https://www.mdpi.com/2306-5338/4/2/27 |
| article html file updated | 24 September 2019 15:51 CEST | Update | N/A |
| article html file updated | 3 May 2019 23:28 CEST | Update | N/A |
| article html file updated | 23 May 2017 03:41 CEST | Update | N/A |
| article html file updated | 4 May 2017 15:41 CEST | Original file | N/A |
| article xml uploaded. | 4 May 2017 15:40 CEST | Original file | https://www.mdpi.com/2306-5338/4/2/27/xml |
| article pdf uploaded. | 4 May 2017 15:40 CEST | Version of Record | https://www.mdpi.com/2306-5338/4/2/27/pdf |
