| The effect of air temperature on labour productivity in call centres—a case study R Niemelä, M Hannula, S Rautio, K Reijula, J Railio Energy and buildings 34 (8), 759-764, 2002 | 352 | 2002 |
| Sub-communities of mutual learners in the classroom: the case of Interactive groups C Elboj Saso, R Niemelä Revista de psicodidáctica, 2010 | 158 | 2010 |
| Emission of ozone and organic volatiles from a selection of laser printers and photocopiers T Tuomi, B Engström, R Niemelä, J Svinhufvud, K Reijula Applied Occupational and Environmental Hygiene 15 (8), 629-634, 2000 | 97 | 2000 |
| Impact of particle emissions of new laser printers on modeled office room AJ Koivisto, T Hussein, R Niemelä, T Tuomi, K Hämeri Atmospheric Environment 44 (17), 2140-2146, 2010 | 92 | 2010 |
| Formas de implicación de las familias y de la comunidad hacia el éxito educativo BM Gutiérrez, R Niemelä Revista Educación y Pedagogía, 69-77, 2010 | 74 | 2010 |
| Work environment effects on labor productivity: an intervention study in a storage building R Niemelä, S Rautio, M Hannula, K Reijula American journal of industrial medicine 42 (4), 328-335, 2002 | 63 | 2002 |
| Formaldehyde exposure in work and the general environment: Occurrence and possibilities for prevention R Niemelä, H Vainio Scandinavian journal of work, environment & health, 95-100, 1981 | 63 | 1981 |
| Turbulence correction for thermal comfort calculation H Koskela, J Heikkinen, R Niemelä, T Hautalampi Building and Environment 36 (2), 247-255, 2001 | 59 | 2001 |
| Comparison of three tracer gases for determining ventilation effectiveness and capture efficiency R Niemelä, A Lefevre, JP Muller, G Aubertin The Annals of Occupational Hygiene 35 (4), 405-417, 1991 | 53 | 1991 |
| Contaminant dispersion in the vicinity of a worker in a uniform velocity field I Welling, IM Andersson, G Rosen, J Räisänen, T Mielo, K Marttinen, ... Annals of occupational hygiene 44 (3), 219-225, 2000 | 48 | 2000 |
| Use of tracer gas technique for industrial exhaust hood efficiency evaluation–where to sample? V Hampl, R Niemelä, S Shulman, DL Bartley American Industrial Hygiene Association Journal 47 (5), 281-287, 1986 | 48 | 1986 |
| Prevalence of building‐related symptoms as an indicator of health and productivity R Niemelä, O Seppänen, P Korhonen, K Reijula American journal of industrial medicine 49 (10), 819-825, 2006 | 45 | 2006 |
| Assessing the effect of indoor environment on productivity R Niemelä, J Railio, M Hannula, S Rautio, K Reijula Clima 2000/Napoli 2001 World Congress, Napoli, Italy, 15-18 September 2001, 6, 2001 | 40 | 2001 |
| Evaluation of air diffuser flow modelling methods experiments and computational fluid dynamics simulations JR Fontaine, R Rapp, H Koskela, R Niemelä Building and Environment 40 (3), 377-389, 2005 | 28 | 2005 |
| Occupational exposure to chemical agents in the particleboard industry TP Kauppinen, RI Niemelä Scandinavian Journal of Work, Environment & Health, 357-363, 1985 | 27 | 1985 |
| Effect of reduced summer indoor temperature on symptoms, perceived work environment and productivity in office work: An intervention study P Kekäläinen, R Niemelä, M Tuomainen, S Kemppilä, J Palonen, ... Intelligent Buildings International 2 (4), 251-266, 2010 | 25 | 2010 |
| Tetrachloroethylene emissions and exposure in dry cleaning J Räisänen, R Niemelä, C Rosenberg Journal of the Air & Waste Management Association 51 (12), 1671-1675, 2001 | 23 | 2001 |
| Stratification of welding fumes and grinding particles in a large factory hall equipped with displacement ventilation R Niemelä, H Koskela, K Engström Annals of occupational hygiene 45 (6), 467-471, 2001 | 23 | 2001 |
| Work conditions and health of locomotive engineers: I. Noise, vibration, thermal climate, diesel exhaust constituents, ergonomics M Heino, R Ketola, P Mäkelä, R Mäkinen, R Niemelä, J Starck, T Partanen Scandinavian Journal of Work, Environment & Health, 3-14, 1978 | 21 | 1978 |
| Prevalence of SBS-symptoms as an indicator of health and productivity in office buildings R Niemelä, O Seppänen, K Reijula | 16 | 2003 |
