| article html file updated | 8 February 2020 12:36 CET | Update | https://www.mdpi.com/2076-0760/6/3/87 |
| article html file updated | 26 September 2019 07:35 CEST | Update | - |
| article html file updated | 3 May 2019 08:51 CEST | Update | - |
| article html file updated | 27 March 2019 18:51 CET | Update | - |
| article html file updated | 4 August 2017 14:19 CEST | Original file | - |
| article xml uploaded. | 4 August 2017 14:18 CEST | Original file | https://www.mdpi.com/2076-0760/6/3/87/xml |
| article pdf uploaded. | 4 August 2017 14:18 CEST | Updated version of record | https://www.mdpi.com/2076-0760/6/3/87/pdf |
| article pdf uploaded. | 2 August 2017 11:47 CEST | Version of Record | https://www.mdpi.com/2076-0760/6/3/87/pdf-vor |
