- world's
oxygen levels up". New Scientist. Jöhnk KD, ****sman J,
Sharples J,
Sommeijer B,
Visser PM,
Stroom JM (1
March 2008). "Summer
heatwaves promote blooms...
- Polybini)".
Smithsonian Tropical Research Institute. van Veen, J. W.;
Sommeijer, M. J.; Meeuwsen, F. (November 1997). "Behaviour of
drones in Melipona...
- 613–623. doi:10.1007/s00265-015-1872-6. S2CID 18594915. van Veen, J. W.;
Sommeijer, M. J. (1
February 2000). "Colony
reproduction in
Tetragonisca angustula...
- Meliponini)" (PDF). Apidologie. 42 (4): 499–507. doi:10.1007/s13592-011-0013-0.
Sommeijer,
Marinus J. (1999). "B****eeping with
stingless bees: a new type of hive"...
- 2317/jkes-704.23.1. S2CID 86256384. Slaa,
Judith E.; Cevaal,
Annechlen W.;
Sommeijer,
Marinus J. (1998). "Floral
Constancy in
Trigona stingless bees foraging...
- 1590/s0073-47212013000400006.
Retrieved 2015-10-10. van Veen, J. W.;
Sommeijer, M.J (2000). "Colony
reproduction in
Tetragonisca angustula (Apidae, Meliponini)"...
- 1007/s10886-014-0423-3. PMID 24752855. S2CID 14507148. van Veen, JW; MJ
Sommeijer; F
Meeuwsen (November 1997). "Behaviour of
drones in
Melipona (Apidae...
-
Natural History,
Volume 90, New York 1948, p. 181-187 van Veen, J. W.;
Sommeijer, M. J. (1
February 2000). "Colony
reproduction in
Tetragonisca angustula...
- 14411/eje.2008.014. Koedam, D; Velthausz, P H; v d Krift, T; Dohmen, M R;
Sommeijer, M J (2008). "Morphology of
reproductive and
trophic eggs and
their controlled...
- doi:10.3354/meps032169. JSTOR 24824977. Jöhnk KD, ****sman J,
Sharples J,
Sommeijer B,
Visser PM,
Stroom JM (2008). "Summer
heatwaves promote blooms of harmful...
