21. Geofysikální sborník =: Geofizičeskij sbornik = Travaux géophysiques Type: issue, normal, model:periodicalitem, and TEXT Language: Czech Description: 571 Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
22. Geofysikální sborník =: Geofizičeskij sbornik = Travaux géophysiques Type: issue, normal, model:periodicalitem, and TEXT Language: Czech Description: 575 Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
23. Geofysikální sborník =: Geofizičeskij sbornik = Travaux géophysiques Type: issue, normal, model:periodicalitem, and TEXT Language: Czech Description: 588 Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public