| article html file updated | 8 February 2020 02:24 CET | Update | https://www.mdpi.com/2220-9964/6/4/98 |
| article html file updated | 24 September 2019 01:07 CEST | Update | - |
| article html file updated | 4 May 2019 04:42 CEST | Update | - |
| article html file updated | 28 April 2017 08:12 CEST | Update | - |
| article html file updated | 29 March 2017 06:04 CEST | Original file | - |
| article xml uploaded. | 29 March 2017 05:55 CEST | Original file | https://www.mdpi.com/2220-9964/6/4/98/xml |
| article pdf uploaded. | 29 March 2017 05:55 CEST | Updated version of record | https://www.mdpi.com/2220-9964/6/4/98/pdf |
| article pdf uploaded. | 28 March 2017 12:05 CEST | Version of Record | https://www.mdpi.com/2220-9964/6/4/98/pdf-vor |
