| article html file updated | 8 February 2020 01:20 CET | Update | https://www.mdpi.com/2076-3921/6/1/20 |
| article html file updated | 23 September 2019 19:08 CEST | Update | - |
| article html file updated | 4 May 2019 07:00 CEST | Update | - |
| article html file updated | 4 May 2018 05:03 CEST | Update | - |
| article xml uploaded. | 4 May 2018 05:02 CEST | Update | https://www.mdpi.com/2076-3921/6/1/20/xml |
| article pdf uploaded. | 4 May 2018 05:02 CEST | Updated version of record | https://www.mdpi.com/2076-3921/6/1/20/pdf |
| Correction published | 3 May 2018 00:00 CEST | Correction | http://www.mdpi.com/2076-3921/7/5/64 |
| article html file updated | 29 March 2017 08:17 CEST | Update | - |
| article html file updated | 13 March 2017 09:33 CET | Original file | - |
| article pdf uploaded. | 13 March 2017 09:32 CET | Version of Record | https://www.mdpi.com/2076-3921/6/1/20/pdf-vor |
