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| 2021-07-07 | Reference included | | | Suzuki & Serita, 2021c |
| 2021-07-07 | Reference included | | | Prasad et al., 2021b |
| 2021-07-07 | Reference included | | | Kenichi, 2021 |
| 2021-07-07 | Reference included | | | Tanikawa & Petcharad, 2021 |
| 2021-07-07 | Reference included | | | Karthika, Aswathy & Sunil Jose, 2021 |
| 2021-07-07 | Reference included | | | Luis de la Iglesia et al., 2021 |
| 2021-07-07 | Reference included | | | Hernández-Corral, Urones & Ferrández, 2021 |
| 2021-07-07 | Reference included | | | Fomichev & Omelko, 2021 |
| 2021-07-06 | Reference included | | | Febrer & Barrientos, 2021 |
| 2021-07-06 | Reference included | | | Ferrández & Hoyas, 2021 |
| 2021-07-06 | Reference included | | | Barrientos et al., 2021 |
| 2021-07-06 | Reference included | | | Hernández-Corral & Barrientos, 2021a |
| 2021-07-05 | Reference included | | | Sherwood & Gabriel, 2021b |
| 2021-07-05 | Reference included | | | Roberts, 1997 |
| 2021-07-05 | Reference included | | | Nellist, 1996 |
| 2021-07-05 | Reference included | | | Dobson, 1992 |
| 2021-07-05 | Reference included | | | Pett, 2021a |
| 2021-07-05 | Reference included | | | Zamani & Marusik, 2021c |
| 2021-07-05 | Reference included | | | Buchar & Dolejš, 2021 |
| 2021-07-05 | Reference included | | | Pett, Rubio & Stolar, 2021 |
| 2021-07-05 | Reference included | | | Sherwood et al., 2021c |
| 2021-07-05 | Reference included | | | Bosmans, 2021 |
| 2021-07-05 | Reference included | | | Cala-Riquelme & Salgado, 2021 |
| 2021-07-05 | Reference included | | | Sherwood, 2021c |
| 2021-07-05 | Reference included | | | Haddad, 2021a |
| 2021-07-05 | Reference included | | | Galleti-Lima, Indicatti & Guadanucci, 2021 |
| 2021-07-05 | Reference included | | | Sherwood et al., 2021b |
| 2021-07-05 | Reference included | | | Tharmarajan & Benjamin, 2021 |
| 2021-07-05 | Reference included | | | Fomichev, 2021b |
| 2021-07-05 | Reference included | | | Logunov, 2021b |
| 2021-07-05 | Reference included | | | Prajapati, Tatu & Kamboj, 2021a |
| 2021-07-02 | Reference included | | | Lecigne, 2021a |
| 2021-07-01 | Reference included | | | Sherwood, 2021b |
| 2021-07-01 | Reference included | | | Meyer, 1794 |
| 2021-07-01 | Reference included | | | Al-Khazali, 2021a |
| 2021-07-01 | Reference included | | | Indzhov, 2021 |
| 2021-07-01 | Reference included | | | Turbanov, Nadolny & Turbanova, 2021 |
| 2021-06-29 | Reference included | | | Silva-Moreira & Hormiga, 2021 |
| 2021-06-28 | Reference included | | | Sebastian & Peter, 2009 |
| 2021-06-27 | Reference included | | | Tanasevitch, 2021d |
| 2021-06-27 | Reference included | | | Omelko & Marusik, 2021 |
| 2021-06-27 | Reference included | | | Esyunin & Efimik, 2021 |
| 2021-06-27 | Reference included | | | Prajapati et al., 2021 |
| 2021-06-27 | Reference included | | | Caleb et al., 2021 |
| 2021-06-27 | Reference included | | | Marusik & Omelko, 2021a |
| 2021-06-24 | Reference included | | | Oliveira & Brescovit, 2021a |
| 2021-06-24 | Reference included | | | Borges, Paladini & Bertani, 2021 |
| 2021-06-23 | Reference included | | | Tanasevitch, 2021c |
| 2021-06-22 | Reference included | | | Machado & Teixeira, 2021 |