 We prove here that this method is applicable to any linear PDE (of arbitrary order) the source of which is a linear combination of one-dimensional delta distributions and derivatives thereof supported at an arbitrary number of particles.
<clarity>  We prove here that this method is applicable to any linear PDE (of arbitrary order) the source of which is a linear combination of one-dimensional delta distributions and derivatives thereof supported at an arbitrary number of particles.
 We prove here that this method is applicable to any linear PDE the source of which is a linear combination of one-dimensional delta distributions and derivatives thereof supported at an arbitrary number of particles.