pedagogický výskum 4 [vynechat] damage to soils 2 [vynechat] ekológia pôdy 2 [vynechat] humus 2 [vynechat] kvalita vzdelávania 2 [vynechat] logika 2 [vynechat] natural disasters 2 [vynechat] politická moc 2 [vynechat] poškodenie pôdy 2 [vynechat] prírodné katastrofy 2 [vynechat] pôda 2 [vynechat] pôdna biológia 2 [vynechat] pôdne organizmy 2 [vynechat] soil 2 [vynechat] soil biology 2 [vynechat] soil ecology 2 [vynechat] soil organisms 2 [vynechat] soil properties 2 [vynechat] soil use 2 [vynechat] vlastnosti pôdy 2 [vynechat] využitie pôdy 2 [vynechat] Greek philosophy (ancient) 1 [vynechat] agriculture 1 [vynechat] air pollutant emission 1 [vynechat] air pollutant emission reduction 1 [vynechat] archivists 1 [vynechat] archivári 1 [vynechat] archívnictvo 1 [vynechat] children and youth 1 [vynechat] creative ability 1 [vynechat]