GROOS, Alexander R.. Living the high life: the early arrival of hunter-gatherers in the glaciated Ethiopian Highlands. TheScienceBreaker, 2020-05-29. Dostupné online [cit. 2023-01-29]. ISSN2571-9262. DOI: 10.25250/thescbr.brk344. (po anglicky)
GROOS, Alexander R.. Living the high life: the early arrival of hunter-gatherers in the glaciated Ethiopian Highlands. TheScienceBreaker, 2020-05-29. Dostupné online [cit. 2023-01-29]. ISSN2571-9262. DOI: 10.25250/thescbr.brk344. (po anglicky)
worldcat.org
GROOS, Alexander R.. Living the high life: the early arrival of hunter-gatherers in the glaciated Ethiopian Highlands. TheScienceBreaker, 2020-05-29. Dostupné online [cit. 2023-01-29]. ISSN2571-9262. DOI: 10.25250/thescbr.brk344. (po anglicky)