| article html file updated | 8 February 2020 15:01 CET | Update | https://www.mdpi.com/2079-9276/6/3/44 |
| article html file updated | 3 May 2019 04:08 CEST | Update | - |
| article html file updated | 6 October 2017 05:11 CEST | Update | - |
| article html file updated | 31 August 2017 18:06 CEST | Original file | - |
| article xml uploaded. | 31 August 2017 18:05 CEST | Original file | https://www.mdpi.com/2079-9276/6/3/44/xml |
| article pdf uploaded. | 31 August 2017 18:05 CEST | Version of Record | https://www.mdpi.com/2079-9276/6/3/44/pdf |
