| article html file updated | 14 August 2026 12:59 CEST | Update | https://www.mdpi.com/2076-3417/7/4/321 |
| article html file updated | 8 February 2020 02:13 CET | Update | N/A |
| article html file updated | 24 September 2019 00:06 CEST | Update | N/A |
| article html file updated | 4 May 2019 05:06 CEST | Update | N/A |
| article html file updated | 28 April 2017 05:03 CEST | Update | N/A |
| article html file updated | 27 March 2017 15:11 CEST | Original file | N/A |
| article xml uploaded. | 27 March 2017 15:09 CEST | Original file | https://www.mdpi.com/2076-3417/7/4/321/xml |
| article pdf uploaded. | 27 March 2017 15:09 CEST | Updated version of record | https://www.mdpi.com/2076-3417/7/4/321/pdf |
| article pdf uploaded. | 24 March 2017 14:20 CET | Version of Record | https://www.mdpi.com/2076-3417/7/4/321/pdf-vor |
