Vladimir Yakutkin

Towards the IR limit of the triplet-triplet annihilation-supported up-conversion: tetraanthraporphyrin.

Stanislav Baluschev, Sergei Chernov, Tzenka Miteva, 2008, Chemistry.

Upconversion with ultrabroad excitation band: Simultaneous use of two sensitizers

Andrei V. Cheprakov, Gerhard Wegner, Stanislav Baluschev, 2007 .

Blue-green up-conversion: noncoherent excitation by NIR light.

Akio Yasuda, Gerhard Wegner, Klaus Müllen, 2007, Angewandte Chemie.