| Significance of size and nucleic acid content heterogeneity as measured by flow cytometry in natural planktonic bacteria JM Gasol, UL Zweifel, F Peters, JA Fuhrman, Å Hagström Applied and Environmental Microbiology 65 (10), 4475-4483, 1999 | 568 | 1999 |
| P limitation of heterotrophic bacteria and phytoplankton in the northwest Mediterranean TF Thingstad, UL Zweifel, F Rassoulzadegan Limnology and Oceanography 43 (1), 88-94, 1998 | 403 | 1998 |
| Total counts of marine bacteria include a large fraction of non-nucleoid-containing bacteria (ghosts) UL Zweifel, A Hagstrom Applied and Environmental Microbiology 61 (6), 2180-2185, 1995 | 401 | 1995 |
| Consumption of dissolved organic carbon by marine bacteria and demand for inorganic nutrients UL Zweifel, B Norrman, A Hagstrom Marine Ecology-Progress Series 101, 23-23, 1993 | 371 | 1993 |
| Biogeographical diversity among marine bacterioplankton Å Hagström, J Pinhassi, UL Zweifel Aquatic Microbial Ecology 21 (3), 231-244, 2000 | 259 | 2000 |
| Dominant marine bacterioplankton species found among colony-forming bacteria J Pinhassi, UL Zweifel, A Hagstroëm Applied and Environmental Microbiology 63 (9), 3359-3366, 1997 | 252 | 1997 |
| Coupling between bacterioplankton species composition, population dynamics, and organic matter degradation J Pinhassi, F Azam, J Hemphälä, RA Long, J Martinez, UL Zweifel, ... Aquatic Microbial Ecology 17 (1), 13-26, 1999 | 245 | 1999 |
| Annual variations in the diversity, viability, and origin of airborne bacteria C Fahlgren, A Hagström, D Nilsson, UL Zweifel Applied and environmental microbiology 76 (9), 3015-3025, 2010 | 221 | 2010 |
| Use of 16S ribosomal DNA for delineation of marine bacterioplankton species A Hagström, T Pommier, F Rohwer, K Simu, W Stolte, D Svensson, ... Applied and environmental microbiology 68 (7), 3628-3633, 2002 | 219 | 2002 |
| Dynamics of dissolved organic carbon in a coastal ecosystem UL Zweifel, J Wikner, Å Hagström, E Lundberg, B Norrman Limnology and Oceanography 40 (2), 299-305, 1995 | 171 | 1995 |
| Diversity of airborne bacteria in samples collected using different devices for aerosol collection C Fahlgren, G Bratbak, RA Sandaa, R Thyrhaug, UL Zweifel Aerobiologia 27, 107-120, 2011 | 97 | 2011 |
| Variability in motility characteristics among marine bacteria JE Johansen, J Pinhassi, N Blackburn, UL Zweifel, Å Hagström Aquatic microbial ecology 28 (3), 229-237, 2002 | 93 | 2002 |
| A comparison of methods for the measurement of dissolved organic carbon in natural waters ET Peltzer, B Fry, PH Doering, JH McKenna, B Norrman, UL Zweifel Marine chemistry 54 (1-2), 85-96, 1996 | 91 | 1996 |
| Pelagic plankton growth and resource limitations in the Baltic Sea Å Hagström, F Azam, J Kuparinen, UL Zweifel A systems analysis of the Baltic Sea, 177-210, 2001 | 86 | 2001 |
| Long‐term decomposition of DOC from experimental diatom blooms B Fry, CS Hopkinson Jr, A Nolin, B Norrman, UL Zweifel Limnology and Oceanography 41 (6), 1344-1347, 1996 | 75 | 1996 |
| Spatial variability in bacterioplankton community composition at the Skagerrak-Kattegat Front J Pinhassi, A Winding, SJ Binnerup, UL Zweifel, B Riemann, Å Hagström Marine Ecology Progress Series 255, 1-13, 2003 | 72 | 2003 |
| Silicate and labile DOC interfere in structuring the microbial food web via algal—bacterial competition for mineral nutrients: Results of a mesocosm experiment H Havskum, TF Thingstad, R Scharek, F Peters, E Berdalet, MM Sala, ... Limnology and Oceanography 48 (1), 129-140, 2003 | 70 | 2003 |
| Factors controlling accumulation of labile dissolved organic carbon in the Gulf of Riga UL Zweifel Estuarine, Coastal and Shelf Science 48 (3), 357-370, 1999 | 68 | 1999 |
| Culturability and coexistence of colony-forming and single-cell marine bacterioplankton K Simu, K Holmfeldt, UL Zweifel, A Hagström Applied and environmental microbiology 71 (8), 4793-4800, 2005 | 53 | 2005 |
| High bacterial 16S rRNA gene diversity above the atmospheric boundary layer UL Zweifel, Å Hagström, K Holmfeldt, R Thyrhaug, C Geels, LM Frohn, ... Aerobiologia 28, 481-498, 2012 | 44 | 2012 |
