@misc {IOPORT.70728199,
    author       = {Lehto, Raija},
    title        = {Interactive lecturing techniques},
    howpublished = {ISCAS, 605-608 (2011).},
    year         = {2011},
    doi          = {10.1109/ISCAS.2011.5937638},
    identifier   = {70728199},
}