| article html file updated | 8 February 2020 05:37 CET | Update | https://www.mdpi.com/2309-608X/3/2/23 |
| article html file updated | 24 September 2019 18:40 CEST | Update | N/A |
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| article html file updated | 11 December 2018 08:54 CET | Update | N/A |
| article html file updated | 23 May 2017 04:03 CEST | Update | N/A |
| article html file updated | 11 May 2017 12:36 CEST | Original file | N/A |
| article xml uploaded. | 11 May 2017 12:35 CEST | Original file | https://www.mdpi.com/2309-608X/3/2/23/xml |
| article pdf uploaded. | 11 May 2017 12:35 CEST | Version of Record | https://www.mdpi.com/2309-608X/3/2/23/pdf |
