Solar superstorm of AD 774 recorded subannually by Arctic tree rings

le Uusitalo, J., Arppe, L., Hackman, T., Helama, S., Kovaltsov, G., Mielikäinen, K., Mäkinen, H., Nöjd, P., Palonen, V., Usoskin, I., Oinonen, M.
Foilsithe in Nat Commun (2018)

Author Correction: Solar superstorm of AD 774 recorded subannually by Arctic tree rings

le Uusitalo, J., Arppe, L., Hackman, T., Helama, S., Kovaltsov, G., Mielikäinen, K., Mäkinen, H., Nöjd, P., Palonen, V., Usoskin, I., Oinonen, M.
Foilsithe in Nat Commun (2019)

Tree height strongly affects estimates of water-use efficiency responses to climate and CO(2) using isotopes

le Brienen, R. J. W., Gloor, E., Clerici, S., Newton, R., Arppe, L., Boom, A., Bottrell, S., Callaghan, M., Heaton, T., Helama, S., Helle, G., Leng, M. J., Mielikäinen, K., Oinonen, M., Timonen, M.
Foilsithe in Nat Commun (2017)