| article html file updated | 8 February 2020 20:10 CET | Update | https://www.mdpi.com/2306-5729/2/4/37 |
| article html file updated | 28 September 2019 04:37 CEST | Update | - |
| article html file updated | 2 May 2019 17:21 CEST | Update | - |
| article html file updated | 8 November 2017 07:49 CET | Original file | - |
| article xml uploaded. | 8 November 2017 07:47 CET | Original file | https://www.mdpi.com/2306-5729/2/4/37/xml |
| article pdf uploaded. | 8 November 2017 07:47 CET | Updated version of record | https://www.mdpi.com/2306-5729/2/4/37/pdf |
| article pdf uploaded. | 2 November 2017 11:02 CET | Version of Record | https://www.mdpi.com/2306-5729/2/4/37/pdf-vor |
