| article html file updated | 8 February 2020 07:18 CET | Update | https://www.mdpi.com/2076-393X/5/2/15 |
| article html file updated | 25 September 2019 03:20 CEST | Update | N/A |
| article html file updated | 3 May 2019 19:18 CEST | Update | N/A |
| article html file updated | 30 June 2017 08:27 CEST | Update | N/A |
| article html file updated | 5 June 2017 04:56 CEST | Original file | N/A |
| article xml uploaded. | 5 June 2017 04:55 CEST | Update | https://www.mdpi.com/2076-393X/5/2/15/xml |
| article pdf uploaded. | 5 June 2017 04:55 CEST | Updated version of record | https://www.mdpi.com/2076-393X/5/2/15/pdf |
| article pdf uploaded. | 2 June 2017 13:47 CEST | Version of Record | https://www.mdpi.com/2076-393X/5/2/15/pdf-vor |
