| article html file updated | 7 February 2020 14:33 CET | Update | https://www.mdpi.com/2076-3921/5/3/30 |
| article html file updated | 5 May 2019 04:53 CEST | Update | - |
| article html file updated | 28 September 2016 07:56 CEST | Update | - |
| article html file updated | 7 September 2016 08:44 CEST | Original file | - |
| article xml uploaded. | 7 September 2016 08:42 CEST | Original file | https://www.mdpi.com/2076-3921/5/3/30/xml |
| article pdf uploaded. | 7 September 2016 08:42 CEST | Version of Record | https://www.mdpi.com/2076-3921/5/3/30/pdf |
