PICARD, R. W., & LIU, K. K. (2007, Januar 1). Relative subjective count and assessment of interruptive technologies applied to mobile monitoring of stress. 65(4). London: Elsevier, 2007. Abgerufen von http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18551653

PICARD, Rosalind W und LIU, Karen K, 2007. Relative subjective count and assessment of interruptive technologies applied to mobile monitoring of stress. In: [online]. London: Elsevier, 2007. 1 Januar 2007. Available from: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18551653

PICARD, R. W., und K. K. LIU. Relative subjective count and assessment of interruptive technologies applied to mobile monitoring of stress. Nr. 4, London: Elsevier, 2007., 2007, http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18551653.

PICARD, R.W. und LIU, K.K. (2007), „Relative subjective count and assessment of interruptive technologies applied to mobile monitoring of stress“, in , Bd. 65, London: Elsevier, 2007., verfügbar unter: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=18551653.