کتاب های Jens Frehse (auth.)
![Partial Differential Equations and the Calculus of Variations: Essays in Honor of Ennio De Giorgi](http://cdn.ketabkoo.com/covers/7/754416-n.jpg)
Partial Differential Equations and the Calculus of Variations: Essays in Honor of Ennio De Giorgi
Jens Frehse (auth.), 1989![Instrumentation for the Detection and Determination of Pesticides and their Residues in Foods](http://cdn.ketabkoo.com/covers/1/165875-n.jpg)
Instrumentation for the Detection and Determination of Pesticides and their Residues in Foods
H. Frehse (auth.), 1964![Instrumentation for the Detection and Determination of Pesticides and their Residues in Foods](http://cdn.ketabkoo.com/covers/1/165876-n.jpg)