| article html file updated | 8 February 2020 03:05 CET | Update | https://www.mdpi.com/2220-9964/6/4/112 |
| article html file updated | 24 September 2019 05:04 CEST | Update | - |
| article html file updated | 4 May 2019 03:10 CEST | Update | - |
| article html file updated | 28 April 2017 08:16 CEST | Update | - |
| article html file updated | 7 April 2017 14:58 CEST | Original file | - |
| article xml uploaded. | 7 April 2017 14:56 CEST | Original file | https://www.mdpi.com/2220-9964/6/4/112/xml |
| article pdf uploaded. | 7 April 2017 14:56 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/4/112/pdf |
